12213312332321 has 4 divisors (see below), whose sum is σ = 12213331990932. Its totient is φ = 12213292673712.

The previous prime is 12213312332279. The next prime is 12213312332329. The reversal of 12213312332321 is 12323321331221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8069803747600 + 4143508584721 = 2840740^2 + 2035561^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213312332321 - 2⁶ = 12213312332257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213312332329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8865926 + ... + 10150431.

It is an arithmetic number, because the mean of its divisors is an integer number (3053332997733).

Almost surely, 2^{12213312332321} is an apocalyptic number.

It is an amenable number.

12213312332321 is a deficient number, since it is larger than the sum of its proper divisors (19658611).

12213312332321 is an equidigital number, since it uses as much as digits as its factorization.

12213312332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19658610.

The product of its digits is 7776, while the sum is 29.

Adding to 12213312332321 its reverse (12323321331221), we get a palindrome (24536633663542).

The spelling of 12213312332321 in words is "twelve trillion, two hundred thirteen billion, three hundred twelve million, three hundred thirty-two thousand, three hundred twenty-one".