12225306 has 16 divisors (see below), whose sum is σ = 24562944. Its totient is φ = 4056384.

The previous prime is 12225299. The next prime is 12225347. The reversal of 12225306 is 60352221.

12225306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231 + ... + 5906.

It is an arithmetic number, because the mean of its divisors is an integer number (1535184).

Almost surely, 2^12225306 is an apocalyptic number.

12225306 is an abundant number, since it is smaller than the sum of its proper divisors (12337638).

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

12225306 is a wasteful number, since it uses less digits than its factorization.

12225306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9365.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 12225306 is about 3496.4705060961. The cubic root of 12225306 is about 230.3668122891.

Adding to 12225306 its reverse (60352221), we get a palindrome (72577527).

The spelling of 12225306 in words is "twelve million, two hundred twenty-five thousand, three hundred six".