12006226 has 4 divisors (see below), whose sum is σ = 18009342. Its totient is φ = 6003112.

The previous prime is 12006223. The next prime is 12006229. The reversal of 12006226 is 62260021.

It is a Cunningham number, because it is equal to 3465²+1.

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 (12006223) and next prime (12006229).

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 1 = 3465^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (12006223) 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, 3001555 + ... + 3001558.

Almost surely, 2^12006226 is an apocalyptic number.

12006226 is a deficient number, since it is larger than the sum of its proper divisors (6003116).

12006226 is an equidigital number, since it uses as much as digits as its factorization.

12006226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6003115.

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

The square root of 12006226 is about 3465.0001443001. Note that the first 3 decimals coincide. The cubic root of 12006226 is about 228.9824360588.

Adding to 12006226 its reverse (62260021), we get a palindrome (74266247).

The spelling of 12006226 in words is "twelve million, six thousand, two hundred twenty-six".