121312214310 has 32 divisors (see below), whose sum is σ = 332742074112. Its totient is φ = 27728506080.

The previous prime is 121312214297. The next prime is 121312214339. The reversal of 121312214310 is 13412213121.

It is a super-2 number, since 2×121312214310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent 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, 288838396 + ... + 288838815.

It is an arithmetic number, because the mean of its divisors is an integer number (10398189816).

Almost surely, 2^121312214310 is an apocalyptic number.

121312214310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121312214310 is an abundant number, since it is smaller than the sum of its proper divisors (211429859802).

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

121312214310 is a wasteful number, since it uses less digits than its factorization.

121312214310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577677228.

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

Adding to 121312214310 its reverse (13412213121), we get a palindrome (134724427431).

The spelling of 121312214310 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred fourteen thousand, three hundred ten".