200021211010100 has 36 divisors (see below), whose sum is σ = 434048888262444. Its totient is φ = 80007957146880.

The previous prime is 200021211010079. The next prime is 200021211010141. The reversal of 200021211010100 is 1010112120002.

200021211010100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 23540720126884 + 176480490883216 = 4851878^2 + 13284596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8839352 + ... + 21867248.

Almost surely, 2^{200021211010100} is an apocalyptic number.

200021211010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021211010100 is an abundant number, since it is smaller than the sum of its proper divisors (234027677252344).

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

200021211010100 is a wasteful number, since it uses less digits than its factorization.

200021211010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13181444 (or 13181437 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200021211010100 its reverse (1010112120002), we get a palindrome (201031323130102).

The spelling of 200021211010100 in words is "two hundred trillion, twenty-one billion, two hundred eleven million, ten thousand, one hundred".