12152226 has 16 divisors (see below), whose sum is σ = 24822144. Its totient is φ = 3964464.

The previous prime is 12152221. The next prime is 12152227. The reversal of 12152226 is 62225121.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12152221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21265 + ... + 21828.

It is an arithmetic number, because the mean of its divisors is an integer number (1551384).

Almost surely, 2^12152226 is an apocalyptic number.

12152226 is an abundant number, since it is smaller than the sum of its proper divisors (12669918).

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

12152226 is a wasteful number, since it uses less digits than its factorization.

12152226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43145.

The product of its digits is 480, while the sum is 21.

The square root of 12152226 is about 3486.0043029233. The cubic root of 12152226 is about 229.9068684064.

Adding to 12152226 its reverse (62225121), we get a palindrome (74377347).

The spelling of 12152226 in words is "twelve million, one hundred fifty-two thousand, two hundred twenty-six".