12071224 has 32 divisors (see below), whose sum is σ = 26146800. Its totient is φ = 5163520.

The previous prime is 12071219. The next prime is 12071233. The reversal of 12071224 is 42217021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2539 + ... + 5530.

Almost surely, 2^12071224 is an apocalyptic number.

It is an amenable number.

12071224 is an abundant number, since it is smaller than the sum of its proper divisors (14075576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12071224 is a wasteful number, since it uses less digits than its factorization.

12071224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8103 (or 8099 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12071224 is about 3474.3667048831. The cubic root of 12071224 is about 229.3949060229.

Adding to 12071224 its reverse (42217021), we get a palindrome (54288245).

The spelling of 12071224 in words is "twelve million, seventy-one thousand, two hundred twenty-four".