12312233221321 has 32 divisors (see below), whose sum is σ = 14327708921856. Its totient is φ = 10475219160000.

The previous prime is 12312233221297. The next prime is 12312233221361.

12312233221321 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12312233221321 - 2²⁷ = 12312099003593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12312233221321.

It is not an unprimeable number, because it can be changed into a prime (12312233221361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2675871 + ... + 5637796.

It is an arithmetic number, because the mean of its divisors is an integer number (447740903808).

Almost surely, 2^{12312233221321} is an apocalyptic number.

12312233221321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12312233221321 is a deficient number, since it is larger than the sum of its proper divisors (2015475700535).

12312233221321 is a wasteful number, since it uses less digits than its factorization.

12312233221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313853.

The product of its digits is 5184, while the sum is 28.

It can be divided in two parts, 1231223 and 3221321, that added together give a palindrome (4452544).

The spelling of 12312233221321 in words is "twelve trillion, three hundred twelve billion, two hundred thirty-three million, two hundred twenty-one thousand, three hundred twenty-one".