12228284 has 12 divisors (see below), whose sum is σ = 21470064. Its totient is φ = 6093984.

The previous prime is 12228269. The next prime is 12228289. The reversal of 12228284 is 48282221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3632 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (1789172).

Almost surely, 2^12228284 is an apocalyptic number.

It is an amenable number.

12228284 is a deficient number, since it is larger than the sum of its proper divisors (9241780).

12228284 is a wasteful number, since it uses less digits than its factorization.

12228284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084 (or 10082 counting only the distinct ones).

The product of its digits is 4096, while the sum is 29.

The square root of 12228284 is about 3496.8963381833. The cubic root of 12228284 is about 230.3855160246.

The spelling of 12228284 in words is "twelve million, two hundred twenty-eight thousand, two hundred eighty-four".