122311111531152 has 80 divisors (see below), whose sum is σ = 317871424926720. Its totient is φ = 40525087142016.

The previous prime is 122311111531069. The next prime is 122311111531181. The reversal of 122311111531152 is 251135111113221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310206549 + ... + 310600587.

It is an arithmetic number, because the mean of its divisors is an integer number (3973392811584).

Almost surely, 2^{122311111531152} is an apocalyptic number.

122311111531152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122311111531152 is an abundant number, since it is smaller than the sum of its proper divisors (195560313395568).

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

122311111531152 is a wasteful number, since it uses less digits than its factorization.

122311111531152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432940 (or 432934 counting only the distinct ones).

The product of its digits is 1800, while the sum is 30.

Adding to 122311111531152 its reverse (251135111113221), we get a palindrome (373446222644373).

The spelling of 122311111531152 in words is "one hundred twenty-two trillion, three hundred eleven billion, one hundred eleven million, five hundred thirty-one thousand, one hundred fifty-two".