202002021988 has 24 divisors (see below), whose sum is σ = 380791518912. Its totient is φ = 93208339104.

The previous prime is 202002021941. The next prime is 202002022037. The reversal of 202002021988 is 889120200202.

It is a happy number.

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, 276370 + ... + 693097.

It is an arithmetic number, because the mean of its divisors is an integer number (15866313288).

Almost surely, 2^202002021988 is an apocalyptic number.

It is an amenable number.

202002021988 is a deficient number, since it is larger than the sum of its proper divisors (178789496924).

202002021988 is a wasteful number, since it uses less digits than its factorization.

202002021988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973491 (or 973489 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 202002021988 in words is "two hundred two billion, two million, twenty-one thousand, nine hundred eighty-eight".