121011122120200 has 96 divisors (see below), whose sum is σ = 303032424449160. Its totient is φ = 44675250278400.

The previous prime is 121011122120191. The next prime is 121011122120219. The reversal of 121011122120200 is 2021221110121.

It can be written as a sum of positive squares in 12 ways, for example, as 23384826237796 + 97626295882404 = 4835786^2 + 9880602^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17120352 + ... + 23132848.

Almost surely, 2^{121011122120200} is an apocalyptic number.

121011122120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011122120200 is an abundant number, since it is smaller than the sum of its proper divisors (182021302328960).

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

121011122120200 is a wasteful number, since it uses less digits than its factorization.

121011122120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020267 (or 6020258 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121011122120200 its reverse (2021221110121), we get a palindrome (123032343230321).

The spelling of 121011122120200 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-two million, one hundred twenty thousand, two hundred".