200021100999957 has 24 divisors (see below), whose sum is σ = 289380375147968. Its totient is φ = 133134632769600.

The previous prime is 200021100999953. The next prime is 200021100999959. The reversal of 200021100999957 is 759999001120002.

200021100999957 is a `hidden beast` number, since 200 + 0 + 211 + 0 + 0 + 99 + 99 + 57 = 666.

200021100999957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200021100999957 - 2² = 200021100999953 is a prime.

It is a super-3 number, since 3×200021100999957³ (a number of 44 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021100999953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 893825193 + ... + 894048945.

Almost surely, 2^{200021100999957} is an apocalyptic number.

It is an amenable number.

200021100999957 is a deficient number, since it is larger than the sum of its proper divisors (89359274148011).

200021100999957 is a wasteful number, since it uses less digits than its factorization.

200021100999957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381801 (or 381798 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 54.

The spelling of 200021100999957 in words is "two hundred trillion, twenty-one billion, one hundred million, nine hundred ninety-nine thousand, nine hundred fifty-seven".