122129331488 has 48 divisors (see below), whose sum is σ = 253207321920. Its totient is φ = 57825513216.

The previous prime is 122129331451. The next prime is 122129331509. The reversal of 122129331488 is 884133921221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390445 + ... + 1475667.

It is an arithmetic number, because the mean of its divisors is an integer number (5275152540).

Almost surely, 2^122129331488 is an apocalyptic number.

It is an amenable number.

122129331488 is an abundant number, since it is smaller than the sum of its proper divisors (131077990432).

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

122129331488 is a wasteful number, since it uses less digits than its factorization.

122129331488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87609 (or 87601 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The spelling of 122129331488 in words is "one hundred twenty-two billion, one hundred twenty-nine million, three hundred thirty-one thousand, four hundred eighty-eight".