200121021112 has 16 divisors (see below), whose sum is σ = 376686945360. Its totient is φ = 99671169024.

The previous prime is 200121021083. The next prime is 200121021127. The reversal of 200121021112 is 211120121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121021092 and 200121021101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48665508 + ... + 48669619.

It is an arithmetic number, because the mean of its divisors is an integer number (23542934085).

Almost surely, 2^200121021112 is an apocalyptic number.

It is an amenable number.

200121021112 is a deficient number, since it is larger than the sum of its proper divisors (176565924248).

200121021112 is a wasteful number, since it uses less digits than its factorization.

200121021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97335390 (or 97335386 counting only the distinct ones).

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

Adding to 200121021112 its reverse (211120121002), we get a palindrome (411241142114).

The spelling of 200121021112 in words is "two hundred billion, one hundred twenty-one million, twenty-one thousand, one hundred twelve".