22617212317 has 32 divisors (see below), whose sum is σ = 26994654720. Its totient is φ = 18561852288.

The previous prime is 22617212287. The next prime is 22617212329. The reversal of 22617212317 is 71321271622.

It is not a de Polignac number, because 22617212317 - 2¹¹ = 22617210269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22617212117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23388568 + ... + 23389534.

It is an arithmetic number, because the mean of its divisors is an integer number (843582960).

Almost surely, 2^22617212317 is an apocalyptic number.

It is an amenable number.

22617212317 is a deficient number, since it is larger than the sum of its proper divisors (4377442403).

22617212317 is an frugal number, since it uses more digits than its factorization.

22617212317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1140 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

Adding to 22617212317 its reverse (71321271622), we get a palindrome (93938483939).

The spelling of 22617212317 in words is "twenty-two billion, six hundred seventeen million, two hundred twelve thousand, three hundred seventeen".