12022224 has 60 divisors (see below), whose sum is σ = 32158656. Its totient is φ = 3868416.

The previous prime is 12022223. The next prime is 12022229. The reversal of 12022224 is 42222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022223) 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 11 ways as a sum of consecutive naturals, for example, 164652 + ... + 164724.

Almost surely, 2^12022224 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 12022224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16079328).

12022224 is an abundant number, since it is smaller than the sum of its proper divisors (20136432).

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

12022224 is an equidigital number, since it uses as much as digits as its factorization.

12022224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12022224 is about 3467.3078894151. The cubic root of 12022224 is about 229.0840954019.

Adding to 12022224 its reverse (42222021), we get a palindrome (54244245).

It can be divided in two parts, 12022 and 224, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 12022224 in words is "twelve million, twenty-two thousand, two hundred twenty-four".