12217113 has 12 divisors (see below), whose sum is σ = 17871360. Its totient is φ = 8041176.

The previous prime is 12217109. The next prime is 12217147. The reversal of 12217113 is 31171221.

It is a happy number.

It is not a de Polignac number, because 12217113 - 2² = 12217109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12217313) 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 in 11 ways as a sum of consecutive naturals, for example, 7881 + ... + 9302.

It is an arithmetic number, because the mean of its divisors is an integer number (1489280).

Almost surely, 2^12217113 is an apocalyptic number.

It is an amenable number.

12217113 is a deficient number, since it is larger than the sum of its proper divisors (5654247).

12217113 is a wasteful number, since it uses less digits than its factorization.

12217113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17268 (or 17265 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 12217113 is about 3495.2986996822. The cubic root of 12217113 is about 230.3153393560.

Adding to 12217113 its reverse (31171221), we get a palindrome (43388334).

The spelling of 12217113 in words is "twelve million, two hundred seventeen thousand, one hundred thirteen".