202020100002 has 64 divisors (see below), whose sum is σ = 514005411840. Its totient is φ = 57614448528.

The previous prime is 202020099943. The next prime is 202020100019. The reversal of 202020100002 is 200001020202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281758 + ... + 695289.

It is an arithmetic number, because the mean of its divisors is an integer number (8031334560).

Almost surely, 2^202020100002 is an apocalyptic number.

202020100002 is an abundant number, since it is smaller than the sum of its proper divisors (311985311838).

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

202020100002 is a wasteful number, since it uses less digits than its factorization.

202020100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977612 (or 977606 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 202020100002 its reverse (200001020202), we get a palindrome (402021120204).

The spelling of 202020100002 in words is "two hundred two billion, twenty million, one hundred thousand, two".