112120021120 has 64 divisors (see below), whose sum is σ = 283803831000. Its totient is φ = 42209886208.

The previous prime is 112120021099. The next prime is 112120021127. The reversal of 112120021120 is 21120021211.

It can be written as a sum of positive squares in 4 ways, for example, as 112074970176 + 45050944 = 334776^2 + 6712^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 112120021120.

It is not an unprimeable number, because it can be changed into a prime (112120021127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5141695 + ... + 5163454.

Almost surely, 2^112120021120 is an apocalyptic number.

112120021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112120021120 is an abundant number, since it is smaller than the sum of its proper divisors (171683809880).

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

112120021120 is a wasteful number, since it uses less digits than its factorization.

112120021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305185 (or 10305173 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112120021120 its reverse (21120021211), we get a palindrome (133240042331).

Subtracting from 112120021120 its reverse (21120021211), we obtain a palindrome (90999999909).

The spelling of 112120021120 in words is "one hundred twelve billion, one hundred twenty million, twenty-one thousand, one hundred twenty".