200021000111100 has 432 divisors, whose sum is σ = 768680126323200. Its totient is φ = 44142564453120.

The previous prime is 200021000111077. The next prime is 200021000111131. The reversal of 200021000111100 is 1111000120002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15341280 + ... + 25207079.

Almost surely, 2^{200021000111100} is an apocalyptic number.

200021000111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021000111100 is an abundant number, since it is smaller than the sum of its proper divisors (568659126212100).

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

200021000111100 is a wasteful number, since it uses less digits than its factorization.

200021000111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40548424 (or 40548405 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 200021000111100 its reverse (1111000120002), we get a palindrome (201132000231102).

The spelling of 200021000111100 in words is "two hundred trillion, twenty-one billion, one hundred eleven thousand, one hundred".