20200122021120 has 144 divisors (see below), whose sum is σ = 64517191441920. Its totient is φ = 5386444398592.

The previous prime is 20200122020983. The next prime is 20200122021173. The reversal of 20200122021120 is 2112022100202.

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 20200122021120.

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, 89462926 + ... + 89688434.

It is an arithmetic number, because the mean of its divisors is an integer number (448036051680).

Almost surely, 2^{20200122021120} is an apocalyptic number.

20200122021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200122021120 is an abundant number, since it is smaller than the sum of its proper divisors (44317069420800).

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

20200122021120 is a wasteful number, since it uses less digits than its factorization.

20200122021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248860 (or 248846 counting only the distinct ones).

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

Adding to 20200122021120 its reverse (2112022100202), we get a palindrome (22312144121322).

The spelling of 20200122021120 in words is "twenty trillion, two hundred billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty".