12227288 has 16 divisors (see below), whose sum is σ = 22971480. Its totient is φ = 6101568.

The previous prime is 12227273. The next prime is 12227291. The reversal of 12227288 is 88272221.

12227288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3956 + ... + 6332.

Almost surely, 2^12227288 is an apocalyptic number.

It is an amenable number.

12227288 is a deficient number, since it is larger than the sum of its proper divisors (10744192).

12227288 is a wasteful number, since it uses less digits than its factorization.

12227288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026 (or 3022 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 12227288 is about 3496.7539232837. The cubic root of 12227288 is about 230.3792608487.

The spelling of 12227288 in words is "twelve million, two hundred twenty-seven thousand, two hundred eighty-eight".