2221
Everything about the number 2221 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 2221
| Nominal | 2221 |
| Cardinal | two thousand two hundred twenty-one |
| Ordinal | 2,221st |
| This number as US currency | two thousand two hundred twenty-one dollars |
Properties (and some facts) of 2221
| Is 2221 an odd number? | 2221 is an odd number |
| Is 2221 an even number? | 2221 is not an even number |
| Is 2221 a palindrome? | 2221 is not a palindrome |
| Is 2221 a triangle number? | 2221 is not a triangle number |
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2221 in other bases
| Base 2 (Binary) | 100010101101 |
| Base 3 (Ternary) | 10001021 |
| Base 4 (Quaternary) | 202231 |
| Base 5 (Quinary) | 32341 |
| Base 6 (Senary) | 14141 |
| Base 8 (Octal) | 4255 |
| Base 12 (Duodecimal) | 1351 |
| Base 16 (Hexadecimal) | 8AD |
| Base 20 (Vigesimal) | 5B1 |
Primes and factors tests for 2221
| Is 2221 a prime number? | 2221 is a prime number |
| Is 2221 a perfect number? | 2221 is not a perfect number |
| Is 2221 a Mersenne prime? | 2221 is not a Mersenne prime |
| Is 2221 a Fermat prime? | 2221 is not a Fermat prime |
| Is 2221 a Fibonacci prime? | 2221 is not a Fibonacci prime |
| Is 2221 a partition prime? | 2221 is not a partition prime |
| Is 2221 a Pell prime? | 2221 is not a Pell prime |
| Prime Factors | Prime factors of 2221 |
2221 in other numeral systems
| 2221 in Roman numerals | MMCCXXI |
| 2221 in Chinese numerals | 貳仟貳佰貳拾壹 |
| 2221 in Babylonian numerals |   |
| 2221 in Egyptian numerals | 𓆽𓍣𓎇𓏺 |
Roots and squares for 2221
| Is 2221 a square number? | 2221 is not a square number |
| Is 2221 a cube number? | 2221 is not a cube number |
| Square root of 2221 | 47.127486671793 |
| Cube root of 2221 | 13.047165946038 |
Recreational math for 2221
| Number 2221 reversed | 1222 |
| Sum of the digits | 7 |
| Number of digits | 4 |
Arithmetic tables for 2221
Other pages about 2221
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