12228575 has 24 divisors (see below), whose sum is σ = 15936480. Its totient is φ = 9296000.

The previous prime is 12228563. The next prime is 12228577. The reversal of 12228575 is 57582221.

It is a happy number.

It is not a de Polignac number, because 12228575 - 2¹⁴ = 12212191 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73142 + ... + 73308.

It is an arithmetic number, because the mean of its divisors is an integer number (664020).

Almost surely, 2^12228575 is an apocalyptic number.

12228575 is a deficient number, since it is larger than the sum of its proper divisors (3707905).

12228575 is a wasteful number, since it uses less digits than its factorization.

12228575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 302 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 12228575 is about 3496.9379462610. The cubic root of 12228575 is about 230.3873435270.

The spelling of 12228575 in words is "twelve million, two hundred twenty-eight thousand, five hundred seventy-five".