112120100121220 has 12 divisors (see below), whose sum is σ = 235452210254604. Its totient is φ = 44848040048480.

The previous prime is 112120100121181. The next prime is 112120100121311. The reversal of 112120100121220 is 22121001021211.

It can be written as a sum of positive squares in 2 ways, for example, as 21023307073924 + 91096793047296 = 4585118^2 + 9544464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 112120100121194 and 112120100121203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803002503011 + ... + 2803002503050.

It is an arithmetic number, because the mean of its divisors is an integer number (19621017521217).

Almost surely, 2^{112120100121220} is an apocalyptic number.

112120100121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112120100121220 is an abundant number, since it is smaller than the sum of its proper divisors (123332110133384).

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

112120100121220 is a wasteful number, since it uses less digits than its factorization.

112120100121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606005006070 (or 5606005006068 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112120100121220 its reverse (22121001021211), we get a palindrome (134241101142431).

The spelling of 112120100121220 in words is "one hundred twelve trillion, one hundred twenty billion, one hundred million, one hundred twenty-one thousand, two hundred twenty".