12226372 has 6 divisors (see below), whose sum is σ = 21396158. Its totient is φ = 6113184.

The previous prime is 12226351. The next prime is 12226381. The reversal of 12226372 is 27362221.

12226372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12222016 + 4356 = 3496^2 + 66^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1528293 + ... + 1528300.

Almost surely, 2^12226372 is an apocalyptic number.

It is an amenable number.

12226372 is a deficient number, since it is larger than the sum of its proper divisors (9169786).

12226372 is a wasteful number, since it uses less digits than its factorization.

12226372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056597 (or 3056595 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 12226372 is about 3496.6229422115. The cubic root of 12226372 is about 230.3735077966.

Adding to 12226372 its reverse (27362221), we get a palindrome (39588593).

The spelling of 12226372 in words is "twelve million, two hundred twenty-six thousand, three hundred seventy-two".