12097228 has 24 divisors (see below), whose sum is σ = 24872400. Its totient is φ = 5075520.

The previous prime is 12097219. The next prime is 12097229. The reversal of 12097228 is 82279021.

12097228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12097228.

It is not an unprimeable number, because it can be changed into a prime (12097229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10003 + ... + 11146.

It is an arithmetic number, because the mean of its divisors is an integer number (1036350).

Almost surely, 2^12097228 is an apocalyptic number.

It is an amenable number.

12097228 is an abundant number, since it is smaller than the sum of its proper divisors (12775172).

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

12097228 is a wasteful number, since it uses less digits than its factorization.

12097228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21177 (or 21175 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12097228 is about 3478.1069563773. The cubic root of 12097228 is about 229.5595097898.

The spelling of 12097228 in words is "twelve million, ninety-seven thousand, two hundred twenty-eight".