12223504 has 20 divisors (see below), whose sum is σ = 23746000. Its totient is φ = 6095520.

The previous prime is 12223501. The next prime is 12223531. The reversal of 12223504 is 40532221.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12223501) 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, 7219 + ... + 8749.

It is an arithmetic number, because the mean of its divisors is an integer number (1187300).

Almost surely, 2^12223504 is an apocalyptic number.

It is an amenable number.

12223504 is a deficient number, since it is larger than the sum of its proper divisors (11522496).

12223504 is a wasteful number, since it uses less digits than its factorization.

12223504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12223504 is about 3496.2128081683. The cubic root of 12223504 is about 230.3554931070.

Adding to 12223504 its reverse (40532221), we get a palindrome (52755725).

The spelling of 12223504 in words is "twelve million, two hundred twenty-three thousand, five hundred four".