12322213 has 2 divisors, whose sum is σ = 12322214. Its totient is φ = 12322212.

The previous prime is 12322207. The next prime is 12322217. The reversal of 12322213 is 31222321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11716929 + 605284 = 3423^2 + 778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12322213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12322217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161106 + 6161107.

It is an arithmetic number, because the mean of its divisors is an integer number (6161107).

Almost surely, 2^12322213 is an apocalyptic number.

It is an amenable number.

12322213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12322213 is an equidigital number, since it uses as much as digits as its factorization.

12322213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 16.

The square root of 12322213 is about 3510.3009842462. The cubic root of 12322213 is about 230.9738980896.

Adding to 12322213 its reverse (31222321), we get a palindrome (43544534).

The spelling of 12322213 in words is "twelve million, three hundred twenty-two thousand, two hundred thirteen".