12322133221 has 4 divisors (see below), whose sum is σ = 12322427392. Its totient is φ = 12321839052.

The previous prime is 12322133129. The next prime is 12322133227. The reversal of 12322133221 is 12233122321.

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.

It is a cyclic number.

It is not a de Polignac number, because 12322133221 - 2⁷ = 12322133093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12322133192 and 12322133201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322133227) 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, 71205 + ... + 172378.

It is an arithmetic number, because the mean of its divisors is an integer number (3080606848).

Almost surely, 2^12322133221 is an apocalyptic number.

It is an amenable number.

12322133221 is a deficient number, since it is larger than the sum of its proper divisors (294171).

12322133221 is an equidigital number, since it uses as much as digits as its factorization.

12322133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294170.

The product of its digits is 864, while the sum is 22.

Adding to 12322133221 its reverse (12233122321), we get a palindrome (24555255542).

The spelling of 12322133221 in words is "twelve billion, three hundred twenty-two million, one hundred thirty-three thousand, two hundred twenty-one".