12225562 has 8 divisors (see below), whose sum is σ = 18364500. Its totient is φ = 6104064.

The previous prime is 12225553. The next prime is 12225611. The reversal of 12225562 is 26552221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12173121 + 52441 = 3489^2 + 229^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 2437 + ... + 5512.

Almost surely, 2^12225562 is an apocalyptic number.

12225562 is a deficient number, since it is larger than the sum of its proper divisors (6138938).

12225562 is an equidigital number, since it uses as much as digits as its factorization.

12225562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8720.

The product of its digits is 2400, while the sum is 25.

The square root of 12225562 is about 3496.5071142499. The cubic root of 12225562 is about 230.3684202514.

Adding to 12225562 its reverse (26552221), we get a palindrome (38777783).

The spelling of 12225562 in words is "twelve million, two hundred twenty-five thousand, five hundred sixty-two".