200021222222100 has 216 divisors, whose sum is σ = 654314168322360. Its totient is φ = 51043966525440.

The previous prime is 200021222222053. The next prime is 200021222222117. The reversal of 200021222222100 is 1222222120002.

200021222222100 is a `hidden beast` number, since 20 + 0 + 0 + 212 + 2 + 222 + 210 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 58376995754256 + 141644226467844 = 7640484^2 + 11901438^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 30960649 + ... + 36859248.

Almost surely, 2^{200021222222100} is an apocalyptic number.

200021222222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021222222100 is an abundant number, since it is smaller than the sum of its proper divisors (454292946100260).

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

200021222222100 is a wasteful number, since it uses less digits than its factorization.

200021222222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67820059 (or 67820049 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 200021222222100 its reverse (1222222120002), we get a palindrome (201243444342102).

The spelling of 200021222222100 in words is "two hundred trillion, twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred".