202001820202 has 16 divisors (see below), whose sum is σ = 372926437632. Its totient is φ = 79912807920.

The previous prime is 202001820199. The next prime is 202001820271. The reversal of 202001820202 is 202028100202.

It is a super-2 number, since 2×202001820202² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202001820202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554949874 + ... + 554950237.

It is an arithmetic number, because the mean of its divisors is an integer number (23307902352).

Almost surely, 2^202001820202 is an apocalyptic number.

202001820202 is a deficient number, since it is larger than the sum of its proper divisors (170924617430).

202001820202 is a wasteful number, since it uses less digits than its factorization.

202001820202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109900133.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202001820202 its reverse (202028100202), we get a palindrome (404029920404).

The spelling of 202001820202 in words is "two hundred two billion, one million, eight hundred twenty thousand, two hundred two".