202021210202 has 16 divisors (see below), whose sum is σ = 349751008512. Its totient is φ = 85723285200.

The previous prime is 202021210201. The next prime is 202021210207. The reversal of 202021210202 is 202012120202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (202021210201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71434658 + ... + 71437485.

It is an arithmetic number, because the mean of its divisors is an integer number (21859438032).

Almost surely, 2^202021210202 is an apocalyptic number.

202021210202 is a deficient number, since it is larger than the sum of its proper divisors (147729798310).

202021210202 is a wasteful number, since it uses less digits than its factorization.

202021210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142872253.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202021210202 its reverse (202012120202), we get a palindrome (404033330404).

The spelling of 202021210202 in words is "two hundred two billion, twenty-one million, two hundred ten thousand, two hundred two".