12311226 has 12 divisors (see below), whose sum is σ = 26674362. Its totient is φ = 4103736.

The previous prime is 12311219. The next prime is 12311251. The reversal of 12311226 is 62211321.

It can be written as a sum of positive squares in only one way, i.e., 6765201 + 5546025 = 2601^2 + 2355^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 683957 = 12311226 / (1 + 2 + 3 + 1 + 1 + 2 + 2 + 6).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12311199 and 12311208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341961 + ... + 341996.

Almost surely, 2^12311226 is an apocalyptic number.

12311226 is an abundant number, since it is smaller than the sum of its proper divisors (14363136).

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

12311226 is a wasteful number, since it uses less digits than its factorization.

12311226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683965 (or 683962 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 12311226 is about 3508.7356697249. The cubic root of 12311226 is about 230.9052290165.

Adding to 12311226 its reverse (62211321), we get a palindrome (74522547).

The spelling of 12311226 in words is "twelve million, three hundred eleven thousand, two hundred twenty-six".