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 |
| 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 number |
| Is 2221 a triangle number? | 2221 is NOT a triangle number |
2221 in other Bases
| Base 2 (Binary) | 1000101011012 |
| Base 3 (Ternary) | 100010213 |
| Base 4 (Quaternary) | 2022314 |
| Base 5 (Quinary) | 323415 |
| Base 6 (Senary) | 141416 |
| Base 8 (Octal) | 42558 |
| Base 12 (Duodecimal) | 135112 |
| Base 16 (Hexadecimal) | 8AD16 |
| Base 20 (Vigesimal) | 5B120 |
Primes and Factors tests for 2221
| Is 2221 a Prime Number? | 2221 is a prime |
| 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 |
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2221 in other Numerals
| 2221 in Roman Numeral | MMCCXXI |
| 2221 in Chinese Numeral | 貳仟貳佰貳拾壹 |
| 2221 in Egyptian Numeral | 𓆽𓍣𓎇𓏺 |
| 2221 in Babylonian Numeral |   |
Roots and stuff 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 the number 2221 | 47.127486671793 |
| Cube root of the number 2221 | 13.047165946038 |
Recreational math for 2221
| Number 2221 reversed | 1222 |
| Sum of the digits | 7 |
| No of digits | 4 |