202112012120220 has 72 divisors (see below), whose sum is σ = 629642646788064. Its totient is φ = 52439873413248.

The previous prime is 202112012120209. The next prime is 202112012120237. The reversal of 202112012120220 is 22021210211202.

It is a happy number.

202112012120220 is a `hidden beast` number, since 2 + 0 + 211 + 20 + 1 + 212 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202112012120193 and 202112012120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15173567824 + ... + 15173581143.

Almost surely, 2^{202112012120220} is an apocalyptic number.

202112012120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202112012120220 is an abundant number, since it is smaller than the sum of its proper divisors (427530634667844).

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

202112012120220 is a wasteful number, since it uses less digits than its factorization.

202112012120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30347149019 (or 30347149014 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202112012120220 its reverse (22021210211202), we get a palindrome (224133222331422).

The spelling of 202112012120220 in words is "two hundred two trillion, one hundred twelve billion, twelve million, one hundred twenty thousand, two hundred twenty".