20200012211220 has 48 divisors (see below), whose sum is σ = 56571505316928. Its totient is φ = 5385577434880.

The previous prime is 20200012211213. The next prime is 20200012211231. The reversal of 20200012211220 is 2211221000202.

It is a super-2 number, since 2×20200012211220² (a number of 27 digits) contains 22 as substring.

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 20200012211220.

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, 33841929 + ... + 34433648.

It is an arithmetic number, because the mean of its divisors is an integer number (1178573027436).

Almost surely, 2^{20200012211220} is an apocalyptic number.

20200012211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200012211220 is an abundant number, since it is smaller than the sum of its proper divisors (36371493105708).

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

20200012211220 is a wasteful number, since it uses less digits than its factorization.

20200012211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68280520 (or 68280518 counting only the distinct ones).

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

Adding to 20200012211220 its reverse (2211221000202), we get a palindrome (22411233211422).

The spelling of 20200012211220 in words is "twenty trillion, two hundred billion, twelve million, two hundred eleven thousand, two hundred twenty".