12224513 has 16 divisors (see below), whose sum is σ = 15143040. Its totient is φ = 9628416.

The previous prime is 12224501. The next prime is 12224521. The reversal of 12224513 is 31542221.

It is not a de Polignac number, because 12224513 - 2⁴ = 12224497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12224593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3923 + ... + 6311.

It is an arithmetic number, because the mean of its divisors is an integer number (946440).

Almost surely, 2^12224513 is an apocalyptic number.

It is an amenable number.

12224513 is a deficient number, since it is larger than the sum of its proper divisors (2918527).

12224513 is a wasteful number, since it uses less digits than its factorization.

12224513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456.

The product of its digits is 480, while the sum is 20.

The square root of 12224513 is about 3496.3571041872. The cubic root of 12224513 is about 230.3618312323.

Adding to 12224513 its reverse (31542221), we get a palindrome (43766734).

The spelling of 12224513 in words is "twelve million, two hundred twenty-four thousand, five hundred thirteen".