12422157233 has 4 divisors (see below), whose sum is σ = 12440506740. Its totient is φ = 12403807728.

The previous prime is 12422157229. The next prime is 12422157257. The reversal of 12422157233 is 33275122421.

12422157233 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.

It can be written as a sum of positive squares in 2 ways, for example, as 8854245409 + 3567911824 = 94097^2 + 59732^2 .

It is a cyclic number.

It is not a de Polignac number, because 12422157233 - 2² = 12422157229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12422157233.

It is not an unprimeable number, because it can be changed into a prime (12422157133) 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, 9173738 + ... + 9175091.

It is an arithmetic number, because the mean of its divisors is an integer number (3110126685).

Almost surely, 2^12422157233 is an apocalyptic number.

It is an amenable number.

12422157233 is a deficient number, since it is larger than the sum of its proper divisors (18349507).

12422157233 is an equidigital number, since it uses as much as digits as its factorization.

12422157233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18349506.

The product of its digits is 20160, while the sum is 32.

Adding to 12422157233 its reverse (33275122421), we get a palindrome (45697279654).

The spelling of 12422157233 in words is "twelve billion, four hundred twenty-two million, one hundred fifty-seven thousand, two hundred thirty-three".