1322320217 has 2 divisors, whose sum is σ = 1322320218. Its totient is φ = 1322320216.

The previous prime is 1322320193. The next prime is 1322320229. The reversal of 1322320217 is 7120232231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291971136 + 30349081 = 35944^2 + 5509^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322320217 - 2²⁰ = 1321271641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322320192 and 1322320201.

It is not a weakly prime, because it can be changed into another prime (1322320247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661160108 + 661160109.

It is an arithmetic number, because the mean of its divisors is an integer number (661160109).

Almost surely, 2^1322320217 is an apocalyptic number.

It is an amenable number.

1322320217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322320217 is an equidigital number, since it uses as much as digits as its factorization.

1322320217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1322320217 is about 36363.7211654693. The cubic root of 1322320217 is about 1097.6036585864.

Adding to 1322320217 its reverse (7120232231), we get a palindrome (8442552448).

The spelling of 1322320217 in words is "one billion, three hundred twenty-two million, three hundred twenty thousand, two hundred seventeen".