12226318 has 8 divisors (see below), whose sum is σ = 19750248. Its totient is φ = 5642904.

The previous prime is 12226309. The next prime is 12226321. The reversal of 12226318 is 81362221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12226292 and 12226301.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 235096 + ... + 235147.

It is an arithmetic number, because the mean of its divisors is an integer number (2468781).

Almost surely, 2^12226318 is an apocalyptic number.

12226318 is a deficient number, since it is larger than the sum of its proper divisors (7523930).

12226318 is a wasteful number, since it uses less digits than its factorization.

12226318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470258.

The product of its digits is 1152, while the sum is 25.

The square root of 12226318 is about 3496.6152204668. The cubic root of 12226318 is about 230.3731686339.

Adding to 12226318 its reverse (81362221), we get a palindrome (93588539).

It can be divided in two parts, 12226 and 318, that added together give a square (12544 = 112²).

The spelling of 12226318 in words is "twelve million, two hundred twenty-six thousand, three hundred eighteen".