111011122012080 has 80 divisors (see below), whose sum is σ = 344314938219264. Its totient is φ = 29587442430720.

The previous prime is 111011122012079. The next prime is 111011122012111. The reversal of 111011122012080 is 80210221110111.

It is a tau number, because it is divible by the number of its divisors (80).

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, 120818236 + ... + 121733595.

Almost surely, 2^{111011122012080} is an apocalyptic number.

111011122012080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011122012080 is an abundant number, since it is smaller than the sum of its proper divisors (233303816207184).

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

111011122012080 is a wasteful number, since it uses less digits than its factorization.

111011122012080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242553754 (or 242553748 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 21.

Adding to 111011122012080 its reverse (80210221110111), we get a palindrome (191221343122191).

The spelling of 111011122012080 in words is "one hundred eleven trillion, eleven billion, one hundred twenty-two million, twelve thousand, eighty".