12232122517 has 2 divisors, whose sum is σ = 12232122518. Its totient is φ = 12232122516.

The previous prime is 12232122509. The next prime is 12232122521. The reversal of 12232122517 is 71522123221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9417926116 + 2814196401 = 97046^2 + 53049^2 .

It is an emirp because it is prime and its reverse (71522123221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12232122517 - 2³ = 12232122509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12232122547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116061258 + 6116061259.

It is an arithmetic number, because the mean of its divisors is an integer number (6116061259).

Almost surely, 2^12232122517 is an apocalyptic number.

It is an amenable number.

12232122517 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232122517 is an equidigital number, since it uses as much as digits as its factorization.

12232122517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

Adding to 12232122517 its reverse (71522123221), we get a palindrome (83754245738).

The spelling of 12232122517 in words is "twelve billion, two hundred thirty-two million, one hundred twenty-two thousand, five hundred seventeen".