121331031111210 has 32 divisors (see below), whose sum is σ = 308323561413312. Its totient is φ = 30451709768960.

The previous prime is 121331031111209. The next prime is 121331031111379. The reversal of 121331031111210 is 12111130133121.

It is a super-2 number, since 2×121331031111210² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118951990776 + ... + 118951991795.

It is an arithmetic number, because the mean of its divisors is an integer number (9635111294166).

Almost surely, 2^{121331031111210} is an apocalyptic number.

121331031111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121331031111210 is an abundant number, since it is smaller than the sum of its proper divisors (186992530302102).

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

121331031111210 is a wasteful number, since it uses less digits than its factorization.

121331031111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237903982598.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 121331031111210 its reverse (12111130133121), we get a palindrome (133442161244331).

The spelling of 121331031111210 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, thirty-one million, one hundred eleven thousand, two hundred ten".