111020112012210 has 64 divisors (see below), whose sum is σ = 273141089739648. Its totient is φ = 28868570325504.

The previous prime is 111020112012197. The next prime is 111020112012221. The reversal of 111020112012210 is 12210211020111.

It is a happy number.

111020112012210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 111020112012210.

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, 213924787 + ... + 214443126.

It is an arithmetic number, because the mean of its divisors is an integer number (4267829527182).

Almost surely, 2^{111020112012210} is an apocalyptic number.

111020112012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020112012210 is an abundant number, since it is smaller than the sum of its proper divisors (162120977727438).

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

111020112012210 is a wasteful number, since it uses less digits than its factorization.

111020112012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428368139.

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

Adding to 111020112012210 its reverse (12210211020111), we get a palindrome (123230323032321).

The spelling of 111020112012210 in words is "one hundred eleven trillion, twenty billion, one hundred twelve million, twelve thousand, two hundred ten".