20102122012020 has 48 divisors (see below), whose sum is σ = 57483514867968. Its totient is φ = 5246511276160.

The previous prime is 20102122012019. The next prime is 20102122012051. The reversal of 20102122012020 is 2021022120102.

It is a super-2 number, since 2×20102122012020² (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 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, 3564203211 + ... + 3564208850.

It is an arithmetic number, because the mean of its divisors is an integer number (1197573226416).

Almost surely, 2^{20102122012020} is an apocalyptic number.

20102122012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102122012020 is an abundant number, since it is smaller than the sum of its proper divisors (37381392855948).

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

20102122012020 is a wasteful number, since it uses less digits than its factorization.

20102122012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128412120 (or 7128412118 counting only the distinct ones).

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

Adding to 20102122012020 its reverse (2021022120102), we get a palindrome (22123144132122).

The spelling of 20102122012020 in words is "twenty trillion, one hundred two billion, one hundred twenty-two million, twelve thousand, twenty".