12224457 has 24 divisors (see below), whose sum is σ = 20879040. Its totient is φ = 6743520.

The previous prime is 12224413. The next prime is 12224473. The reversal of 12224457 is 75442221.

It is not a de Polignac number, because 12224457 - 2¹² = 12220361 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12224457.

It is not an unprimeable number, because it can be changed into a prime (12224497) 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 23 ways as a sum of consecutive naturals, for example, 1519 + ... + 5172.

It is an arithmetic number, because the mean of its divisors is an integer number (869960).

Almost surely, 2^12224457 is an apocalyptic number.

It is an amenable number.

12224457 is a deficient number, since it is larger than the sum of its proper divisors (8654583).

12224457 is a wasteful number, since it uses less digits than its factorization.

12224457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733 (or 6730 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 12224457 is about 3496.3490958427. The cubic root of 12224457 is about 230.3614794723.

Adding to 12224457 its reverse (75442221), we get a palindrome (87666678).

The spelling of 12224457 in words is "twelve million, two hundred twenty-four thousand, four hundred fifty-seven".