12231226 has 8 divisors (see below), whose sum is σ = 20967840. Its totient is φ = 5241948.

The previous prime is 12231203. The next prime is 12231227. The reversal of 12231226 is 62213221.

12231226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (12231227) 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, 436816 + ... + 436843.

It is an arithmetic number, because the mean of its divisors is an integer number (2620980).

Almost surely, 2^12231226 is an apocalyptic number.

12231226 is a deficient number, since it is larger than the sum of its proper divisors (8736614).

12231226 is an equidigital number, since it uses as much as digits as its factorization.

12231226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873668.

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

The square root of 12231226 is about 3497.3169716227. The cubic root of 12231226 is about 230.4039906756.

Adding to 12231226 its reverse (62213221), we get a palindrome (74444447).

The spelling of 12231226 in words is "twelve million, two hundred thirty-one thousand, two hundred twenty-six".