323222312221 has 4 divisors (see below), whose sum is σ = 323518575744. Its totient is φ = 322926048700.

The previous prime is 323222312201. The next prime is 323222312261. The reversal of 323222312221 is 122213222323.

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 an emirpimes, since its reverse is a distinct semiprime: 122213222323 = 43 ⋅2842167961.

It is a cyclic number.

It is not a de Polignac number, because 323222312221 - 2⁷ = 323222312093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323222312201) 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, 148130125 + ... + 148132306.

It is an arithmetic number, because the mean of its divisors is an integer number (80879643936).

Almost surely, 2^323222312221 is an apocalyptic number.

It is an amenable number.

323222312221 is a deficient number, since it is larger than the sum of its proper divisors (296263523).

323222312221 is a wasteful number, since it uses less digits than its factorization.

323222312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296263522.

The product of its digits is 3456, while the sum is 25.

Adding to 323222312221 its reverse (122213222323), we get a palindrome (445435534544).

The spelling of 323222312221 in words is "three hundred twenty-three billion, two hundred twenty-two million, three hundred twelve thousand, two hundred twenty-one".