122970991185 has 120 divisors (see below), whose sum is σ = 256641232320. Its totient is φ = 56168271936.

The previous prime is 122970991163. The next prime is 122970991201. The reversal of 122970991185 is 581199079221.

It is a happy number.

It is not a de Polignac number, because 122970991185 - 2⁵ = 122970991153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 37048956 + ... + 37052274.

It is an arithmetic number, because the mean of its divisors is an integer number (2138676936).

Almost surely, 2^122970991185 is an apocalyptic number.

122970991185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122970991185 is an abundant number, since it is smaller than the sum of its proper divisors (133670241135).

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

122970991185 is a wasteful number, since it uses less digits than its factorization.

122970991185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217 (or 5201 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 54.

The spelling of 122970991185 in words is "one hundred twenty-two billion, nine hundred seventy million, nine hundred ninety-one thousand, one hundred eighty-five".