202100202 has 24 divisors (see below), whose sum is σ = 438146436. Its totient is φ = 67326336.

The previous prime is 202100153. The next prime is 202100203. The reversal of 202100202 is 202001202.

It can be written as a sum of positive squares in 2 ways, for example, as 201611601 + 488601 = 14199^2 + 699^2 .

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

It is not an unprimeable number, because it can be changed into a prime (202100203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52818 + ... + 56514.

Almost surely, 2^202100202 is an apocalyptic number.

202100202 is an abundant number, since it is smaller than the sum of its proper divisors (236046234).

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

202100202 is a wasteful number, since it uses less digits than its factorization.

202100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742 (or 6739 counting only the distinct ones).

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

The square root of 202100202 is about 14216.1950605638. The cubic root of 202100202 is about 586.8434332322.

Adding to 202100202 its reverse (202001202), we get a palindrome (404101404).

The spelling of 202100202 in words is "two hundred two million, one hundred thousand, two hundred two".