20020012212120 has 128 divisors (see below), whose sum is σ = 60208102353600. Its totient is φ = 5325524434944.

The previous prime is 20020012212089. The next prime is 20020012212173. The reversal of 20020012212120 is 2121221002002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20020012212120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80957784 + ... + 81204696.

Almost surely, 2^{20020012212120} is an apocalyptic number.

20020012212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020012212120 is an abundant number, since it is smaller than the sum of its proper divisors (40188090141480).

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

20020012212120 is a wasteful number, since it uses less digits than its factorization.

20020012212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248589 (or 248585 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20020012212120 its reverse (2121221002002), we get a palindrome (22141233214122).

The spelling of 20020012212120 in words is "twenty trillion, twenty billion, twelve million, two hundred twelve thousand, one hundred twenty".