121310212312200 has 48 divisors (see below), whose sum is σ = 376061658169680. Its totient is φ = 32349389949760.

The previous prime is 121310212312187. The next prime is 121310212312241. The reversal of 121310212312200 is 2213212013121.

It is a super-2 number, since 2×121310212312200² (a number of 29 digits) contains 22 as substring.

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, 101091842994 + ... + 101091844193.

It is an arithmetic number, because the mean of its divisors is an integer number (7834617878535).

Almost surely, 2^{121310212312200} is an apocalyptic number.

121310212312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121310212312200 is an abundant number, since it is smaller than the sum of its proper divisors (254751445857480).

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

121310212312200 is a wasteful number, since it uses less digits than its factorization.

121310212312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202183687206 (or 202183687197 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121310212312200 its reverse (2213212013121), we get a palindrome (123523424325321).

The spelling of 121310212312200 in words is "one hundred twenty-one trillion, three hundred ten billion, two hundred twelve million, three hundred twelve thousand, two hundred".