12231224 has 16 divisors (see below), whose sum is σ = 22982400. Its totient is φ = 6102592.

The previous prime is 12231203. The next prime is 12231227. The reversal of 12231224 is 42213221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231227) 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 3 ways as a sum of consecutive naturals, for example, 3209 + ... + 5895.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^12231224 is an apocalyptic number.

It is an amenable number.

12231224 is a deficient number, since it is larger than the sum of its proper divisors (10751176).

12231224 is a wasteful number, since it uses less digits than its factorization.

12231224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3258 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 12231224 is about 3497.3166856892. The cubic root of 12231224 is about 230.4039781174.

Adding to 12231224 its reverse (42213221), we get a palindrome (54444445).

The spelling of 12231224 in words is "twelve million, two hundred thirty-one thousand, two hundred twenty-four".