112021120020 has 48 divisors (see below), whose sum is σ = 313980343488. Its totient is φ = 29841707520.

The previous prime is 112021119997. The next prime is 112021120031. The reversal of 112021120020 is 20021120211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 112021119978 and 112021120005.

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, 896866 + ... + 1014105.

It is an arithmetic number, because the mean of its divisors is an integer number (6541257156).

Almost surely, 2^112021120020 is an apocalyptic number.

112021120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112021120020 is an abundant number, since it is smaller than the sum of its proper divisors (201959223468).

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

112021120020 is a wasteful number, since it uses less digits than its factorization.

112021120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911960 (or 1911958 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112021120020 its reverse (20021120211), we get a palindrome (132042240231).

The spelling of 112021120020 in words is "one hundred twelve billion, twenty-one million, one hundred twenty thousand, twenty".