20122021000120 has 64 divisors (see below), whose sum is σ = 48810260520000. Its totient is φ = 7421584601088.

The previous prime is 20122021000073. The next prime is 20122021000177. The reversal of 20122021000120 is 2100012022102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 20122021000120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20575545 + ... + 21531304.

It is an arithmetic number, because the mean of its divisors is an integer number (762660320625).

Almost surely, 2^{20122021000120} is an apocalyptic number.

20122021000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122021000120 is an abundant number, since it is smaller than the sum of its proper divisors (28688239519880).

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

20122021000120 is a wasteful number, since it uses less digits than its factorization.

20122021000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42107792 (or 42107788 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20122021000120 its reverse (2100012022102), we get a palindrome (22222033022222).

The spelling of 20122021000120 in words is "twenty trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty", and thus it is an aban number.