200021311100 has 72 divisors (see below), whose sum is σ = 471723141120. Its totient is φ = 73176410880.

The previous prime is 200021311099. The next prime is 200021311117. The reversal of 200021311100 is 1113120002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564092 + ... + 847491.

Almost surely, 2^200021311100 is an apocalyptic number.

200021311100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021311100 is an abundant number, since it is smaller than the sum of its proper divisors (271701830020).

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

200021311100 is a wasteful number, since it uses less digits than its factorization.

200021311100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411719 (or 1411712 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 200021311100 its reverse (1113120002), we get a palindrome (201134431102).

The spelling of 200021311100 in words is "two hundred billion, twenty-one million, three hundred eleven thousand, one hundred".