200821990102 has 16 divisors (see below), whose sum is σ = 314359471872. Its totient is φ = 96036316200.

The previous prime is 200821990099. The next prime is 200821990123. The reversal of 200821990102 is 201099128002.

It is a congruent 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, 306727 + ... + 704077.

It is an arithmetic number, because the mean of its divisors is an integer number (19647466992).

Almost surely, 2^200821990102 is an apocalyptic number.

200821990102 is a deficient number, since it is larger than the sum of its proper divisors (113537481770).

200821990102 is a wasteful number, since it uses less digits than its factorization.

200821990102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408363.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 200821990102 in words is "two hundred billion, eight hundred twenty-one million, nine hundred ninety thousand, one hundred two".