12224913 has 8 divisors (see below), whose sum is σ = 16318368. Its totient is φ = 8140704.

The previous prime is 12224897. The next prime is 12224917. The reversal of 12224913 is 31942221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12224913 - 2⁴ = 12224897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12224917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1845 + ... + 5277.

It is an arithmetic number, because the mean of its divisors is an integer number (2039796).

Almost surely, 2^12224913 is an apocalyptic number.

It is an amenable number.

12224913 is a deficient number, since it is larger than the sum of its proper divisors (4093455).

12224913 is a wasteful number, since it uses less digits than its factorization.

12224913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623.

The product of its digits is 864, while the sum is 24.

The square root of 12224913 is about 3496.4143061142. The cubic root of 12224913 is about 230.3643437721.

The spelling of 12224913 in words is "twelve million, two hundred twenty-four thousand, nine hundred thirteen".