20002020102120 has 96 divisors (see below), whose sum is σ = 69802968132000. Its totient is φ = 4571890307712.

The previous prime is 20002020102023. The next prime is 20002020102139. The reversal of 20002020102120 is 2120102020002.

It is a super-2 number, since 2×20002020102120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20002020102096 and 20002020102105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1700846170 + ... + 1700857929.

It is an arithmetic number, because the mean of its divisors is an integer number (727114251375).

Almost surely, 2^{20002020102120} is an apocalyptic number.

20002020102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002020102120 is an abundant number, since it is smaller than the sum of its proper divisors (49800948029880).

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

20002020102120 is a wasteful number, since it uses less digits than its factorization.

20002020102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401704127 (or 3401704116 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20002020102120 its reverse (2120102020002), we get a palindrome (22122122122122).

The spelling of 20002020102120 in words is "twenty trillion, two billion, twenty million, one hundred two thousand, one hundred twenty".