12006224 has 20 divisors (see below), whose sum is σ = 23329236. Its totient is φ = 5985792.

The previous prime is 12006223. The next prime is 12006229. The reversal of 12006224 is 42260021.

12006224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 3465²-1.

It can be written as a sum of positive squares in 2 ways, for example, as 3125824 + 8880400 = 1768^2 + 2980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006223) 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, 6062 + ... + 7794.

Almost surely, 2^12006224 is an apocalyptic number.

It is an amenable number.

12006224 is a deficient number, since it is larger than the sum of its proper divisors (11323012).

12006224 is a wasteful number, since it uses less digits than its factorization.

12006224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 2168 counting only the distinct ones).

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

The square root of 12006224 is about 3464.9998556999. Note that the first 3 decimals coincide. The cubic root of 12006224 is about 228.9824233441.

Adding to 12006224 its reverse (42260021), we get a palindrome (54266245).

The spelling of 12006224 in words is "twelve million, six thousand, two hundred twenty-four".