112020000000021 has 12 divisors (see below), whose sum is σ = 161810636646048. Its totient is φ = 74678167701864.

The previous prime is 112019999999959. The next prime is 112020000000059. The reversal of 112020000000021 is 120000000020211.

It is not a de Polignac number, because 112020000000021 - 2²² = 112019995805717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 112019999999940 and 112020000000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112020000004021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152304265 + ... + 153037998.

It is an arithmetic number, because the mean of its divisors is an integer number (13484219720504).

Almost surely, 2^{112020000000021} is an apocalyptic number.

It is an amenable number.

112020000000021 is a deficient number, since it is larger than the sum of its proper divisors (49790636646027).

112020000000021 is a wasteful number, since it uses less digits than its factorization.

112020000000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305383032 (or 305383029 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 112020000000021 its reverse (120000000020211), we get a palindrome (232020000020232).

The spelling of 112020000000021 in words is "one hundred twelve trillion, twenty billion, twenty-one", and thus it is an aban number.