322213231 has 2 divisors, whose sum is σ = 322213232. Its totient is φ = 322213230.

The previous prime is 322213217. The next prime is 322213237. The reversal of 322213231 is 132312223.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 322213231 - 2⁹ = 322212719 is a prime.

It is a super-2 number, since 2×322213231² = 207642732462918722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 322213199 and 322213208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322213237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161106615 + 161106616.

It is an arithmetic number, because the mean of its divisors is an integer number (161106616).

Almost surely, 2^322213231 is an apocalyptic number.

322213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

322213231 is an equidigital number, since it uses as much as digits as its factorization.

322213231 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 322213231 is about 17950.2989111602. The cubic root of 322213231 is about 685.5636620078.

Adding to 322213231 its reverse (132312223), we get a palindrome (454525454).

The spelling of 322213231 in words is "three hundred twenty-two million, two hundred thirteen thousand, two hundred thirty-one".