200121101100010 has 16 divisors (see below), whose sum is σ = 360218402021376. Its totient is φ = 80048347097488.

The previous prime is 200121101099981. The next prime is 200121101100043. The reversal of 200121101100010 is 10001101121002.

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 200121101100010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2305522 + ... + 20138461.

It is an arithmetic number, because the mean of its divisors is an integer number (22513650126336).

Almost surely, 2^{200121101100010} is an apocalyptic number.

200121101100010 is a deficient number, since it is larger than the sum of its proper divisors (160097300921366).

200121101100010 is a wasteful number, since it uses less digits than its factorization.

200121101100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23335637.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 200121101100010 its reverse (10001101121002), we get a palindrome (210122202221012).

The spelling of 200121101100010 in words is "two hundred trillion, one hundred twenty-one billion, one hundred one million, one hundred thousand, ten".