12227320 has 32 divisors (see below), whose sum is σ = 31442400. Its totient is φ = 4192128.

The previous prime is 12227309. The next prime is 12227323. The reversal of 12227320 is 2372221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227323) 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 7 ways as a sum of consecutive naturals, for example, 21555 + ... + 22114.

It is an arithmetic number, because the mean of its divisors is an integer number (982575).

Almost surely, 2^12227320 is an apocalyptic number.

12227320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12227320 is an abundant number, since it is smaller than the sum of its proper divisors (19215080).

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

12227320 is a wasteful number, since it uses less digits than its factorization.

12227320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43687 (or 43683 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 12227320 is about 3496.7584989530. The cubic root of 12227320 is about 230.3794618234.

Adding to 12227320 its reverse (2372221), we get a palindrome (14599541).

The spelling of 12227320 in words is "twelve million, two hundred twenty-seven thousand, three hundred twenty".