321222323321 has 2 divisors, whose sum is σ = 321222323322. Its totient is φ = 321222323320.

The previous prime is 321222323179. The next prime is 321222323329. The reversal of 321222323321 is 123323222123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320994766096 + 227557225 = 566564^2 + 15085^2 .

It is a cyclic number.

It is not a de Polignac number, because 321222323321 - 2²² = 321218129017 is a prime.

It is not a weakly prime, because it can be changed into another prime (321222323329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611161660 + 160611161661.

It is an arithmetic number, because the mean of its divisors is an integer number (160611161661).

Almost surely, 2^321222323321 is an apocalyptic number.

It is an amenable number.

321222323321 is a deficient number, since it is larger than the sum of its proper divisors (1).

321222323321 is an equidigital number, since it uses as much as digits as its factorization.

321222323321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 26.

Adding to 321222323321 its reverse (123323222123), we get a palindrome (444545545444).

The spelling of 321222323321 in words is "three hundred twenty-one billion, two hundred twenty-two million, three hundred twenty-three thousand, three hundred twenty-one".