12322222123121 has 4 divisors (see below), whose sum is σ = 12322230095472. Its totient is φ = 12322214150772.

The previous prime is 12322222123117. The next prime is 12322222123153. The reversal of 12322222123121 is 12132122222321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12322222123121 - 2² = 12322222123117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12322222123111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840035 + ... + 5034888.

It is an arithmetic number, because the mean of its divisors is an integer number (3080557523868).

Almost surely, 2^{12322222123121} is an apocalyptic number.

It is an amenable number.

12322222123121 is a deficient number, since it is larger than the sum of its proper divisors (7972351).

12322222123121 is an equidigital number, since it uses as much as digits as its factorization.

12322222123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7972350.

The product of its digits is 2304, while the sum is 26.

Adding to 12322222123121 its reverse (12132122222321), we get a palindrome (24454344345442).

The spelling of 12322222123121 in words is "twelve trillion, three hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred twenty-one".