| ||||
|---|---|---|---|---|
| Cardinal | one hundred twenty-one | |||
| Ordinal | 121st (one hundred twenty-first) | |||
| Factorization | 112 | |||
| Divisors | 1, 11, 121 | |||
| Greek numeral | ΡΚΑ´ | |||
| Roman numeral | CXXI | |||
| Binary | 11110012 | |||
| Ternary | 111113 | |||
| Senary | 3216 | |||
| Octal | 1718 | |||
| Duodecimal | A112 | |||
| Hexadecimal | 7916 | |||
121 (one hundred [and] twenty-one) is the natural number following 120 and preceding 122.