12213226 has 8 divisors (see below), whose sum is σ = 18340704. Its totient is φ = 6099660.

The previous prime is 12213221. The next prime is 12213241. The reversal of 12213226 is 62231221.

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

It is not an unprimeable number, because it can be changed into a prime (12213221) 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, 900 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (2292588).

Almost surely, 2^12213226 is an apocalyptic number.

12213226 is a deficient number, since it is larger than the sum of its proper divisors (6127478).

12213226 is a wasteful number, since it uses less digits than its factorization.

12213226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6956.

The product of its digits is 288, while the sum is 19.

The square root of 12213226 is about 3494.7426228551. The cubic root of 12213226 is about 230.2909110347.

Adding to 12213226 its reverse (62231221), we get a palindrome (74444447).

The spelling of 12213226 in words is "twelve million, two hundred thirteen thousand, two hundred twenty-six".