111020210112120 has 128 divisors (see below), whose sum is σ = 334403966592000. Its totient is φ = 29486199052800.

The previous prime is 111020210112067. The next prime is 111020210112137. The reversal of 111020210112120 is 21211012020111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111020210112120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31002570 + ... + 34397670.

It is an arithmetic number, because the mean of its divisors is an integer number (2612530989000).

Almost surely, 2^{111020210112120} is an apocalyptic number.

111020210112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111020210112120 is an abundant number, since it is smaller than the sum of its proper divisors (223383756479880).

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

111020210112120 is a wasteful number, since it uses less digits than its factorization.

111020210112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396213 (or 3396209 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111020210112120 its reverse (21211012020111), we get a palindrome (132231222132231).

The spelling of 111020210112120 in words is "one hundred eleven trillion, twenty billion, two hundred ten million, one hundred twelve thousand, one hundred twenty".