Names of 21220
| Nominal | 21220 |
| Cardinal | twenty-one thousand two hundred twenty |
| Ordinal | 21,220th |
| This number as US currency | twenty-one thousand two hundred twenty dollars |
| Is 21220 an odd number? | 21220 is NOT an odd number |
| Is 21220 an even number? | 21220 is an even number |
| Is 21220 a palindrome? | 21220 is NOT a palindrome number |
| Is 21220 a triangle number? | 21220 is NOT a triangle number |
21220 in other Bases
| Base 2 (Binary) | 1010010111001002 |
| Base 3 (Ternary) | 10020022213 |
| Base 4 (Quaternary) | 110232104 |
| Base 5 (Quinary) | 11343405 |
| Base 6 (Senary) | 2421246 |
| Base 8 (Octal) | 513448 |
| Base 12 (Duodecimal) | 1034412 |
| Base 16 (Hexadecimal) | 52E416 |
| Base 20 (Vigesimal) | 2D1020 |
Primes and Factors tests for 21220
| Is 21220 a Prime Number? | 21220 is NOT a prime |
| Is 21220 a perfect number? | 21220 is NOT a perfect number |
| Is 21220 a Mersenne Prime? | 21220 is NOT a Mersenne prime |
| Is 21220 a Fermat Prime? | 21220 is NOT a Fermat prime |
| Is 21220 a Fibonacci Prime? | 21220 is NOT a Fibonacci prime |
| Is 21220 a Partition Prime? | 21220 is NOT a Partition prime |
| Is 21220 a Pell Prime? | 21220 is NOT a Pell prime |
| Prime Factors | Prime factors of 21220 |
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21220 in other Numerals
| 21220 in Roman Numeral | XXMCCXX |
| 21220 in Chinese Numeral | 貳萬壹仟貳佰貳拾 |
| 21220 in Egyptian Numeral | 𓂮𓆼𓍣𓎇 |
| 21220 in Babylonian Numeral |    |
Roots and stuff for 21220
| Is 21220 a square number? | 21220 is NOT a square number |
| Is 21220 a cube number? | 21220 is NOT a cube number |
| Square root of the number 21220 | 145.67086187704 |
| Cube root of the number 21220 | 27.685250655063 |
Recreational math for 21220
| Number 21220 reversed | 02212 |
| Sum of the digits | 7 |
| No of digits | 5 |