112012122121220 has 48 divisors (see below), whose sum is σ = 245455852521600. Its totient is φ = 42856252809216.

The previous prime is 112012122121187. The next prime is 112012122121279. The reversal of 112012122121220 is 22121221210211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112012122121192 and 112012122121201.

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, 34603631 + ... + 37701929.

It is an arithmetic number, because the mean of its divisors is an integer number (5113663594200).

Almost surely, 2^{112012122121220} is an apocalyptic number.

112012122121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112012122121220 is an abundant number, since it is smaller than the sum of its proper divisors (133443730400380).

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

112012122121220 is a wasteful number, since it uses less digits than its factorization.

112012122121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176924 (or 3176922 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 112012122121220 its reverse (22121221210211), we get a palindrome (134133343331431).

The spelling of 112012122121220 in words is "one hundred twelve trillion, twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty".