Compare 1021 vs 1201
| Property | 1021 | 1201 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 10211 | 12011 |
| Prime factorization | 1021 | 1201 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1021 | 1, 1201 |
| Number of properties | 8 | 11 |
| Centered decagonal primes | 11th | |
| Centered square primes | 12th | |
| Chen primes | 130th | |
| Cuban primes 2 | 6th | |
| Emirps | 38th | 51st |
| Harmonic primes | 61st | 69th |
| Isolated primes | 116th | |
| Long primes | 62nd | |
| Lucky primes | 45th | 51st |
| Primes | 172nd | 197th |
| Pythagorean primes | 83rd | 96th |
| Solinas primes | 46th | |
| Super primes | 45th | |
| Twin primes (2nd member) | 36th | |
| Roman numberals | MXXI | MCCI |
| Base 2 | 11111111012 | 100101100012 |
| Base 3 | 11012113 | 11221113 |
| Base 4 | 333314 | 1023014 |
| Base 5 | 130415 | 143015 |
| Base 6 | 44216 | 53216 |
| Base 7 | 26567 | 33347 |
| Base 8 | 17758 | 22618 |
| Base 9 | 13549 | 15749 |
| Base 10 | 102110 | 120110 |
| Base 11 | 84911 | 9a211 |
| Base 12 | 71112 | 84112 |
| Base 13 | 60713 | 71513 |
| Base 14 | 52d14 | 61b14 |
| Base 15 | 48115 | 55115 |
| Base 16 | 3fd16 | 4b116 |