200121110120 has 32 divisors (see below), whose sum is σ = 459852768000. Its totient is φ = 78345284928.

The previous prime is 200121110117. The next prime is 200121110141. The reversal of 200121110120 is 21011121002.

It is a super-2 number, since 2×200121110120² (a number of 23 digits) contains 22 as substring.

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, 53221820 + ... + 53225579.

It is an arithmetic number, because the mean of its divisors is an integer number (14370399000).

Almost surely, 2^200121110120 is an apocalyptic number.

200121110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121110120 is an abundant number, since it is smaller than the sum of its proper divisors (259731657880).

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

200121110120 is a wasteful number, since it uses less digits than its factorization.

200121110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106447457 (or 106447453 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200121110120 its reverse (21011121002), we get a palindrome (221132231122).

The spelling of 200121110120 in words is "two hundred billion, one hundred twenty-one million, one hundred ten thousand, one hundred twenty".