111212110112120 has 32 divisors (see below), whose sum is σ = 250232206018320. Its totient is φ = 44483962575360.

The previous prime is 111212110112087. The next prime is 111212110112171. The reversal of 111212110112120 is 21211011212111.

It is a congruent number.

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, 25500146 + ... + 29541185.

Almost surely, 2^{111212110112120} is an apocalyptic number.

111212110112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111212110112120 is an abundant number, since it is smaller than the sum of its proper divisors (139020095906200).

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

111212110112120 is a wasteful number, since it uses less digits than its factorization.

111212110112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55091855 (or 55091851 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111212110112120 its reverse (21211011212111), we get a palindrome (132423121324231).

The spelling of 111212110112120 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred ten million, one hundred twelve thousand, one hundred twenty".