112111011220 has 48 divisors (see below), whose sum is σ = 255912991488. Its totient is φ = 41007957120.

The previous prime is 112111011211. The next prime is 112111011281. The reversal of 112111011220 is 22110111211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 112111011220.

It is a congruent number.

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, 1987116 + ... + 2042755.

It is an arithmetic number, because the mean of its divisors is an integer number (5331520656).

Almost surely, 2^112111011220 is an apocalyptic number.

112111011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112111011220 is an abundant number, since it is smaller than the sum of its proper divisors (143801980268).

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

112111011220 is a wasteful number, since it uses less digits than its factorization.

112111011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030000 (or 4029998 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112111011220 its reverse (22110111211), we get a palindrome (134221122431).

Subtracting from 112111011220 its reverse (22110111211), we obtain a palindrome (90000900009).

The spelling of 112111011220 in words is "one hundred twelve billion, one hundred eleven million, eleven thousand, two hundred twenty".