200021112221100 has 36 divisors (see below), whose sum is σ = 578727751360584. Its totient is φ = 53338963258880.

The previous prime is 200021112221089. The next prime is 200021112221111. The reversal of 200021112221100 is 1122211120002.

It is an interprime number because it is at equal distance from previous prime (200021112221089) and next prime (200021112221111).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200021112221100.

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, 333368520069 + ... + 333368520668.

Almost surely, 2^{200021112221100} is an apocalyptic number.

200021112221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021112221100 is an abundant number, since it is smaller than the sum of its proper divisors (378706639139484).

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

200021112221100 is a wasteful number, since it uses less digits than its factorization.

200021112221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666737040754 (or 666737040747 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200021112221100 its reverse (1122211120002), we get a palindrome (201143323341102).

The spelling of 200021112221100 in words is "two hundred trillion, twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, one hundred".