22201002209957 has 2 divisors, whose sum is σ = 22201002209958. Its totient is φ = 22201002209956.

The previous prime is 22201002209933. The next prime is 22201002210001. The reversal of 22201002209957 is 75990220010222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20101673613121 + 2099328596836 = 4483489^2 + 1448906^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201002209957 - 2²⁸ = 22200733774501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22201002205957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100501104978 + 11100501104979.

It is an arithmetic number, because the mean of its divisors is an integer number (11100501104979).

Almost surely, 2^{22201002209957} is an apocalyptic number.

It is an amenable number.

22201002209957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201002209957 is an equidigital number, since it uses as much as digits as its factorization.

22201002209957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 22201002209957 in words is "twenty-two trillion, two hundred one billion, two million, two hundred nine thousand, nine hundred fifty-seven".