12011224 has 16 divisors (see below), whose sum is σ = 22858200. Its totient is φ = 5915712.

The previous prime is 12011213. The next prime is 12011227. The reversal of 12011224 is 42211021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10669 + ... + 11740.

Almost surely, 2^12011224 is an apocalyptic number.

It is an amenable number.

12011224 is a deficient number, since it is larger than the sum of its proper divisors (10846976).

12011224 is a wasteful number, since it uses less digits than its factorization.

12011224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22482 (or 22478 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12011224 is about 3465.7212813497. The cubic root of 12011224 is about 229.0142055603.

Adding to 12011224 its reverse (42211021), we get a palindrome (54222245).

The spelling of 12011224 in words is "twelve million, eleven thousand, two hundred twenty-four".