111012100122 has 32 divisors (see below), whose sum is σ = 276809393664. Its totient is φ = 28834311600.

The previous prime is 111012100093. The next prime is 111012100181. The reversal of 111012100122 is 221001210111.

It is a junction number, because it is equal to n+sod(n) for n = 111012100098 and 111012100107.

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, 120142504 + ... + 120143427.

It is an arithmetic number, because the mean of its divisors is an integer number (8650293552).

Almost surely, 2^111012100122 is an apocalyptic number.

111012100122 is an abundant number, since it is smaller than the sum of its proper divisors (165797293542).

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

111012100122 is a wasteful number, since it uses less digits than its factorization.

111012100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240285954.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111012100122 its reverse (221001210111), we get a palindrome (332013310233).

The spelling of 111012100122 in words is "one hundred eleven billion, twelve million, one hundred thousand, one hundred twenty-two".