200021211100000 has 72 divisors (see below), whose sum is σ = 492208196096736. Its totient is φ = 80008484400000.

The previous prime is 200021211099979. The next prime is 200021211100013. The reversal of 200021211100000 is 1112120002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 200021211100000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000006056 + ... + 1000206055.

It is an arithmetic number, because the mean of its divisors is an integer number (6836224945788).

Almost surely, 2^{200021211100000} is an apocalyptic number.

200021211100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200021211100000 is an abundant number, since it is smaller than the sum of its proper divisors (292186984996736).

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

200021211100000 is an frugal number, since it uses more digits than its factorization.

200021211100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000212146 (or 2000212118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200021211100000 its reverse (1112120002), we get a palindrome (200022323220002).

The spelling of 200021211100000 in words is "two hundred trillion, twenty-one billion, two hundred eleven million, one hundred thousand".