12222123303121 has 4 divisors (see below), whose sum is σ = 12222130310512. Its totient is φ = 12222116295732.

The previous prime is 12222123303107. The next prime is 12222123303157. The reversal of 12222123303121 is 12130332122221.

12222123303121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12222123303121 - 2²⁵ = 12222089748689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222123303821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404070 + ... + 5139616.

It is an arithmetic number, because the mean of its divisors is an integer number (3055532577628).

Almost surely, 2^{12222123303121} is an apocalyptic number.

It is an amenable number.

12222123303121 is a deficient number, since it is larger than the sum of its proper divisors (7007391).

12222123303121 is an equidigital number, since it uses as much as digits as its factorization.

12222123303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007390.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12222123303121 its reverse (12130332122221), we get a palindrome (24352455425342).

The spelling of 12222123303121 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-three million, three hundred three thousand, one hundred twenty-one".