11712226 has 4 divisors (see below), whose sum is σ = 17568342. Its totient is φ = 5856112.

The previous prime is 11712223. The next prime is 11712229. The reversal of 11712226 is 62221711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11712223) and next prime (11712229).

It can be written as a sum of positive squares in only one way, i.e., 11229201 + 483025 = 3351^2 + 695^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11712197 and 11712206.

It is not an unprimeable number, because it can be changed into a prime (11712223) 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 as a sum of consecutive naturals, namely, 2928055 + ... + 2928058.

Almost surely, 2^11712226 is an apocalyptic number.

11712226 is a deficient number, since it is larger than the sum of its proper divisors (5856116).

11712226 is an equidigital number, since it uses as much as digits as its factorization.

11712226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856115.

The product of its digits is 336, while the sum is 22.

The square root of 11712226 is about 3422.3129605575. The cubic root of 11712226 is about 227.0979155427.

Adding to 11712226 its reverse (62221711), we get a palindrome (73933937).

The spelling of 11712226 in words is "eleven million, seven hundred twelve thousand, two hundred twenty-six".