22222957 has 2 divisors, whose sum is σ = 22222958. Its totient is φ = 22222956.

The previous prime is 22222909. The next prime is 22222973. The reversal of 22222957 is 75922222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16491721 + 5731236 = 4061^2 + 2394^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222957 - 2²³ = 13834349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22222987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111478 + 11111479.

It is an arithmetic number, because the mean of its divisors is an integer number (11111479).

Almost surely, 2^22222957 is an apocalyptic number.

It is an amenable number.

22222957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222957 is an equidigital number, since it uses as much as digits as its factorization.

22222957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 22222957 is about 4714.1231422185. The cubic root of 22222957 is about 281.1473204110.

The spelling of 22222957 in words is "twenty-two million, two hundred twenty-two thousand, nine hundred fifty-seven".