200121122110200 has 48 divisors (see below), whose sum is σ = 620375478543480. Its totient is φ = 53365632562560.

The previous prime is 200121122110127. The next prime is 200121122110229. The reversal of 200121122110200 is 2011221121002.

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 200121122110200.

It is a congruent number.

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, 166767601159 + ... + 166767602358.

Almost surely, 2^{200121122110200} is an apocalyptic number.

200121122110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121122110200 is an abundant number, since it is smaller than the sum of its proper divisors (420254356433280).

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

200121122110200 is a wasteful number, since it uses less digits than its factorization.

200121122110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333535203536 (or 333535203527 counting only the distinct ones).

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

Adding to 200121122110200 its reverse (2011221121002), we get a palindrome (202132343231202).

The spelling of 200121122110200 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred ten thousand, two hundred".