12226603 has 4 divisors (see below), whose sum is σ = 12648240. Its totient is φ = 11804968.

The previous prime is 12226601. The next prime is 12226609. The reversal of 12226603 is 30662221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12226603 - 2¹ = 12226601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12226601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210775 + ... + 210832.

It is an arithmetic number, because the mean of its divisors is an integer number (3162060).

Almost surely, 2^12226603 is an apocalyptic number.

12226603 is a deficient number, since it is larger than the sum of its proper divisors (421637).

12226603 is an equidigital number, since it uses as much as digits as its factorization.

12226603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421636.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 12226603 is about 3496.6559739271. The cubic root of 12226603 is about 230.3749586480.

Adding to 12226603 its reverse (30662221), we get a palindrome (42888824).

The spelling of 12226603 in words is "twelve million, two hundred twenty-six thousand, six hundred three".