202000002021 has 12 divisors (see below), whose sum is σ = 295887327840. Its totient is φ = 132769953960.

The previous prime is 202000001999. The next prime is 202000002041. The reversal of 202000002021 is 120200000202.

202000002021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202000002021 - 2¹³ = 201999993829 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 202000001994 and 202000002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000002041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158058831 + ... + 158060108.

It is an arithmetic number, because the mean of its divisors is an integer number (24657277320).

Almost surely, 2^202000002021 is an apocalyptic number.

It is an amenable number.

202000002021 is a deficient number, since it is larger than the sum of its proper divisors (93887325819).

202000002021 is a wasteful number, since it uses less digits than its factorization.

202000002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316119016 (or 316119013 counting only the distinct ones).

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

Adding to 202000002021 its reverse (120200000202), we get a palindrome (322200002223).

The spelling of 202000002021 in words is "two hundred two billion, two thousand, twenty-one".