200121111102110 has 64 divisors (see below), whose sum is σ = 418405158270720. Its totient is φ = 68108018219520.

The previous prime is 200121111102109. The next prime is 200121111102113. The reversal of 200121111102110 is 11201111121002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121111102113) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 298594424 + ... + 299263883.

It is an arithmetic number, because the mean of its divisors is an integer number (6537580597980).

Almost surely, 2^{200121111102110} is an apocalyptic number.

200121111102110 is an abundant number, since it is smaller than the sum of its proper divisors (218284047168610).

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

200121111102110 is a wasteful number, since it uses less digits than its factorization.

200121111102110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597858521.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 200121111102110 its reverse (11201111121002), we get a palindrome (211322222223112).

The spelling of 200121111102110 in words is "two hundred trillion, one hundred twenty-one billion, one hundred eleven million, one hundred two thousand, one hundred ten".