Names of 121998
| Nominal | 121998 |
| Cardinal | one hundred twenty-one thousand nine hundred ninety-eight |
| Ordinal | 121,998th |
| This number as US currency | one hundred twenty-one thousand nine hundred ninety-eight dollars |
| Is 121998 an odd number? | 121998 is NOT an odd number |
| Is 121998 an even number? | 121998 is an even number |
| Is 121998 a palindrome? | 121998 is NOT a palindrome number |
| Is 121998 a triangle number? | 121998 is NOT a triangle number |
121998 in other Bases
| Base 2 (Binary) | 111011100100011102 |
| Base 3 (Ternary) | 200121001103 |
| Base 4 (Quaternary) | 1313020324 |
| Base 5 (Quinary) | 124004435 |
| Base 6 (Senary) | 23404506 |
| Base 8 (Octal) | 3562168 |
| Base 12 (Duodecimal) | 5A72612 |
| Base 16 (Hexadecimal) | 1DC8E16 |
| Base 20 (Vigesimal) | F4JI20 |
Primes and Factors tests for 121998
| Is 121998 a Prime Number? | 121998 is NOT a prime |
| Is 121998 a perfect number? | 121998 is NOT a perfect number |
| Is 121998 a Mersenne Prime? | 121998 is NOT a Mersenne prime |
| Is 121998 a Fermat Prime? | 121998 is NOT a Fermat prime |
| Is 121998 a Fibonacci Prime? | 121998 is NOT a Fibonacci prime |
| Is 121998 a Partition Prime? | 121998 is NOT a Partition prime |
| Is 121998 a Pell Prime? | 121998 is NOT a Pell prime |
| Prime Factors | Prime factors of 121998 |
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121998 in other Numerals
| 121998 in Roman Numeral | CXXMCMXCVIII |
| 121998 in Chinese Numeral | 壹拾萬貳萬壹仟玖佰玖拾捌 |
| 121998 in Egyptian Numeral | 𓆐𓂮𓆼𓍪𓎎𓐁 |
| 121998 in Babylonian Numeral |    |
Roots and stuff for 121998
| Is 121998 a square number? | 121998 is NOT a square number |
| Is 121998 a cube number? | 121998 is NOT a cube number |
| Square root of the number 121998 | 349.28212092805 |
| Cube root of the number 121998 | 49.596485616414 |
Recreational math for 121998
| Number 121998 reversed | 899121 |
| Sum of the digits | 30 |
| No of digits | 6 |