122200121957 has 2 divisors, whose sum is σ = 122200121958. Its totient is φ = 122200121956.

The previous prime is 122200121947. The next prime is 122200122001. The reversal of 122200121957 is 759121002221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63600300481 + 58599821476 = 252191^2 + 242074^2 .

It is a cyclic number.

It is not a de Polignac number, because 122200121957 - 2¹⁸ = 122199859813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122200121947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100060978 + 61100060979.

It is an arithmetic number, because the mean of its divisors is an integer number (61100060979).

Almost surely, 2^122200121957 is an apocalyptic number.

It is an amenable number.

122200121957 is a deficient number, since it is larger than the sum of its proper divisors (1).

122200121957 is an equidigital number, since it uses as much as digits as its factorization.

122200121957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 122200121957 in words is "one hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, nine hundred fifty-seven".