Base | Representation |
---|---|
bin | 1001101001100101100011… |
… | …10101110000100111010011 |
3 | 2210010121211210110022122122 |
4 | 10310302301311300213103 |
5 | 10240132302224232402 |
6 | 113044220045124455 |
7 | 4320050256536666 |
oct | 464626165604723 |
9 | 83117753408578 |
10 | 21220122102227 |
11 | 68414487a0384 |
12 | 2468727b5972b |
13 | bac0836580b9 |
14 | 5350b8d736dd |
15 | 26beb63aaca2 |
hex | 134cb1d709d3 |
21220122102227 has 2 divisors, whose sum is σ = 21220122102228. Its totient is φ = 21220122102226.
The previous prime is 21220122102173. The next prime is 21220122102229. The reversal of 21220122102227 is 72220122102212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 21220122102227 - 26 = 21220122102163 is a prime.
Together with 21220122102229, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 21220122102196 and 21220122102205.
It is not a weakly prime, because it can be changed into another prime (21220122102229) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610061051113 + 10610061051114.
It is an arithmetic number, because the mean of its divisors is an integer number (10610061051114).
Almost surely, 221220122102227 is an apocalyptic number.
21220122102227 is a deficient number, since it is larger than the sum of its proper divisors (1).
21220122102227 is an equidigital number, since it uses as much as digits as its factorization.
21220122102227 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1792, while the sum is 26.
Adding to 21220122102227 its reverse (72220122102212), we get a palindrome (93440244204439).
The spelling of 21220122102227 in words is "twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty-seven".
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