20102021000120 has 16 divisors (see below), whose sum is σ = 45229547250360. Its totient is φ = 8040808400032.

The previous prime is 20102021000107. The next prime is 20102021000179. The reversal of 20102021000120 is 2100012020102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251275262462 + ... + 251275262541.

Almost surely, 2^{20102021000120} is an apocalyptic number.

20102021000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102021000120 is an abundant number, since it is smaller than the sum of its proper divisors (25127526250240).

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

20102021000120 is a wasteful number, since it uses less digits than its factorization.

20102021000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502550525014 (or 502550525010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20102021000120 its reverse (2100012020102), we get a palindrome (22202033020222).

The spelling of 20102021000120 in words is "twenty trillion, one hundred two billion, twenty-one million, one hundred twenty", and thus it is an aban number.