202021000000002 has 24 divisors (see below), whose sum is σ = 437728868523180. Its totient is φ = 67337763816960.

The previous prime is 202020999999997. The next prime is 202021000000033. The reversal of 202021000000002 is 200000000120202.

202021000000002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 185938341518241 + 16082658481761 = 13635921^2 + 4010319^2 .

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 11 ways as a sum of consecutive naturals, for example, 213641499 + ... + 214585022.

Almost surely, 2^{202021000000002} is an apocalyptic number.

202021000000002 is an abundant number, since it is smaller than the sum of its proper divisors (235707868523178).

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

202021000000002 is a wasteful number, since it uses less digits than its factorization.

202021000000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428252738 (or 428252735 counting only the distinct ones).

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

Adding to 202021000000002 its reverse (200000000120202), we get a palindrome (402021000120204).

The spelling of 202021000000002 in words is "two hundred two trillion, twenty-one billion, two", and thus it is an aban number.