12227648 has 14 divisors (see below), whose sum is σ = 24264366. Its totient is φ = 6113792.

The previous prime is 12227627. The next prime is 12227681. The reversal of 12227648 is 84672221.

It can be written as a sum of positive squares in only one way, i.e., 12166144 + 61504 = 3488^2 + 248^2 .

It is a super-2 number, since 2×12227648² = 299030751223808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95465 + ... + 95592.

It is an arithmetic number, because the mean of its divisors is an integer number (1733169).

Almost surely, 2^12227648 is an apocalyptic number.

It is an amenable number.

12227648 is a deficient number, since it is larger than the sum of its proper divisors (12036718).

12227648 is an equidigital number, since it uses as much as digits as its factorization.

12227648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191069 (or 191059 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 12227648 is about 3496.8053992180. The cubic root of 12227648 is about 230.3815217948.

Adding to 12227648 its reverse (84672221), we get a palindrome (96899869).

The spelling of 12227648 in words is "twelve million, two hundred twenty-seven thousand, six hundred forty-eight".