200121102010120 has 64 divisors (see below), whose sum is σ = 473984279596800. Its totient is φ = 75833245209600.

The previous prime is 200121102010117. The next prime is 200121102010121. The reversal of 200121102010120 is 21010201121002.

It is a self number, because there is not a number n which added to its sum of digits gives 200121102010120.

It is not an unprimeable number, because it can be changed into a prime (200121102010121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23660592 + ... + 30984928.

It is an arithmetic number, because the mean of its divisors is an integer number (7406004368700).

Almost surely, 2^{200121102010120} is an apocalyptic number.

200121102010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121102010120 is an abundant number, since it is smaller than the sum of its proper divisors (273863177586680).

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

200121102010120 is a wasteful number, since it uses less digits than its factorization.

200121102010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7360318 (or 7360314 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200121102010120 its reverse (21010201121002), we get a palindrome (221131303131122).

The spelling of 200121102010120 in words is "two hundred trillion, one hundred twenty-one billion, one hundred two million, ten thousand, one hundred twenty".