322213321 has 2 divisors, whose sum is σ = 322213322. Its totient is φ = 322213320.

The previous prime is 322213303. The next prime is 322213357. The reversal of 322213321 is 123312223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286929721 + 35283600 = 16939^2 + 5940^2 .

It is a cyclic number.

It is not a de Polignac number, because 322213321 - 2⁵ = 322213289 is a prime.

It is not a weakly prime, because it can be changed into another prime (322213391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161106660 + 161106661.

It is an arithmetic number, because the mean of its divisors is an integer number (161106661).

Almost surely, 2^322213321 is an apocalyptic number.

It is an amenable number.

322213321 is a deficient number, since it is larger than the sum of its proper divisors (1).

322213321 is an equidigital number, since it uses as much as digits as its factorization.

322213321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 322213321 is about 17950.3014180821. The cubic root of 322213321 is about 685.5637258380.

Adding to 322213321 its reverse (123312223), we get a palindrome (445525544).

The spelling of 322213321 in words is "three hundred twenty-two million, two hundred thirteen thousand, three hundred twenty-one".