22157065331 has 2 divisors, whose sum is σ = 22157065332. Its totient is φ = 22157065330.

The previous prime is 22157065309. The next prime is 22157065349. The reversal of 22157065331 is 13356075122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22157065331 - 2²⁶ = 22089956467 is a prime.

It is a super-2 number, since 2×22157065331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22157065291 and 22157065300.

It is not a weakly prime, because it can be changed into another prime (22157065351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11078532665 + 11078532666.

It is an arithmetic number, because the mean of its divisors is an integer number (11078532666).

Almost surely, 2^22157065331 is an apocalyptic number.

22157065331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22157065331 is an equidigital number, since it uses as much as digits as its factorization.

22157065331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 22157065331 in words is "twenty-two billion, one hundred fifty-seven million, sixty-five thousand, three hundred thirty-one".