12226643 has 12 divisors (see below), whose sum is σ = 14445288. Its totient is φ = 10258560.

The previous prime is 12226637. The next prime is 12226649. The reversal of 12226643 is 34662221.

12226643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12226637) and next prime (12226649).

It is not a de Polignac number, because 12226643 - 2⁸ = 12226387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12226649) 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 11 ways as a sum of consecutive naturals, for example, 1430 + ... + 5147.

It is an arithmetic number, because the mean of its divisors is an integer number (1203774).

Almost surely, 2^12226643 is an apocalyptic number.

12226643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12226643 is a deficient number, since it is larger than the sum of its proper divisors (2218645).

12226643 is a wasteful number, since it uses less digits than its factorization.

12226643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614 (or 6601 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 12226643 is about 3496.6616936730. The cubic root of 12226643 is about 230.3752098758.

Adding to 12226643 its reverse (34662221), we get a palindrome (46888864).

The spelling of 12226643 in words is "twelve million, two hundred twenty-six thousand, six hundred forty-three".