12204224 has 28 divisors (see below), whose sum is σ = 24813768. Its totient is φ = 5952000.

The previous prime is 12204223. The next prime is 12204229. The reversal of 12204224 is 42240221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204221) 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, 299 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (886206).

Almost surely, 2^12204224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12204224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12406884).

12204224 is an abundant number, since it is smaller than the sum of its proper divisors (12609544).

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

12204224 is an equidigital number, since it uses as much as digits as its factorization.

12204224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 12204224 is about 3493.4544508266. The cubic root of 12204224 is about 230.2343169696.

Adding to 12204224 its reverse (42240221), we get a palindrome (54444445).

The spelling of 12204224 in words is "twelve million, two hundred four thousand, two hundred twenty-four".