122200121956 has 48 divisors (see below), whose sum is σ = 247067174592. Its totient is φ = 52266905600.

The previous prime is 122200121947. The next prime is 122200121957. The reversal of 122200121956 is 659121002221.

It is a super-2 number, since 2×122200121956² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122200121957) 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 in 15 ways as a sum of consecutive naturals, for example, 4122420 + ... + 4151956.

It is an arithmetic number, because the mean of its divisors is an integer number (5147232804).

Almost surely, 2^122200121956 is an apocalyptic number.

It is an amenable number.

122200121956 is an abundant number, since it is smaller than the sum of its proper divisors (124867052636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122200121956 is a wasteful number, since it uses less digits than its factorization.

122200121956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35100 (or 35098 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 122200121956 in words is "one hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, nine hundred fifty-six".