12422224 has 10 divisors (see below), whose sum is σ = 24068090. Its totient is φ = 6211104.

The previous prime is 12422209. The next prime is 12422243. The reversal of 12422224 is 42222421.

It can be written as a sum of positive squares in only one way, i.e., 10679824 + 1742400 = 3268^2 + 1320^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388179 + ... + 388210.

It is an arithmetic number, because the mean of its divisors is an integer number (2406809).

Almost surely, 2^12422224 is an apocalyptic number.

It is an amenable number.

12422224 is a deficient number, since it is larger than the sum of its proper divisors (11645866).

12422224 is an equidigital number, since it uses as much as digits as its factorization.

12422224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776397 (or 776391 counting only the distinct ones).

The product of its digits is 512, while the sum is 19.

The square root of 12422224 is about 3524.5175556379. The cubic root of 12422224 is about 231.5971009547.

Adding to 12422224 its reverse (42222421), we get a palindrome (54644645).

The spelling of 12422224 in words is "twelve million, four hundred twenty-two thousand, two hundred twenty-four".