12224517 has 4 divisors (see below), whose sum is σ = 16299360. Its totient is φ = 8149676.

The previous prime is 12224501. The next prime is 12224521. The reversal of 12224517 is 71542221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12224517 - 2⁴ = 12224501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037417 + ... + 2037422.

It is an arithmetic number, because the mean of its divisors is an integer number (4074840).

Almost surely, 2^12224517 is an apocalyptic number.

It is an amenable number.

12224517 is a deficient number, since it is larger than the sum of its proper divisors (4074843).

12224517 is an equidigital number, since it uses as much as digits as its factorization.

12224517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074842.

The product of its digits is 1120, while the sum is 24.

The square root of 12224517 is about 3496.3576762111. The cubic root of 12224517 is about 230.3618563579.

Adding to 12224517 its reverse (71542221), we get a palindrome (83766738).

The spelling of 12224517 in words is "twelve million, two hundred twenty-four thousand, five hundred seventeen".