12225242 has 8 divisors (see below), whose sum is σ = 18519732. Its totient is φ = 6052000.

The previous prime is 12225223. The next prime is 12225247. The reversal of 12225242 is 24252221.

It can be written as a sum of positive squares in 2 ways, for example, as 12103441 + 121801 = 3479^2 + 349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12225247) 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 3 ways as a sum of consecutive naturals, for example, 30059 + ... + 30462.

Almost surely, 2^12225242 is an apocalyptic number.

12225242 is a deficient number, since it is larger than the sum of its proper divisors (6294490).

12225242 is a wasteful number, since it uses less digits than its factorization.

12225242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60624.

The product of its digits is 640, while the sum is 20.

The square root of 12225242 is about 3496.4613539978. The cubic root of 12225242 is about 230.3664102950.

Adding to 12225242 its reverse (24252221), we get a palindrome (36477463).

The spelling of 12225242 in words is "twelve million, two hundred twenty-five thousand, two hundred forty-two".