323022213221 has 4 divisors (see below), whose sum is σ = 327843440352. Its totient is φ = 318200986092.

The previous prime is 323022213211. The next prime is 323022213251. The reversal of 323022213221 is 122312220323.

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: 122312220323 = 127 ⋅963088349.

It is a cyclic number.

It is not a de Polignac number, because 323022213221 - 2²⁶ = 322955104357 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 (323022213211) 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, 2410613465 + ... + 2410613598.

It is an arithmetic number, because the mean of its divisors is an integer number (81960860088).

Almost surely, 2^323022213221 is an apocalyptic number.

It is an amenable number.

323022213221 is a deficient number, since it is larger than the sum of its proper divisors (4821227131).

323022213221 is an equidigital number, since it uses as much as digits as its factorization.

323022213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821227130.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 323022213221 its reverse (122312220323), we get a palindrome (445334433544).

The spelling of 323022213221 in words is "three hundred twenty-three billion, twenty-two million, two hundred thirteen thousand, two hundred twenty-one".