12226829 has 2 divisors, whose sum is σ = 12226830. Its totient is φ = 12226828.

The previous prime is 12226811. The next prime is 12226831. The reversal of 12226829 is 92862221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10252804 + 1974025 = 3202^2 + 1405^2 .

It is an emirp because it is prime and its reverse (92862221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12226829 - 2⁸ = 12226573 is a prime.

Together with 12226831, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12226795 and 12226804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12226849) 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 as a sum of consecutive naturals, namely, 6113414 + 6113415.

It is an arithmetic number, because the mean of its divisors is an integer number (6113415).

Almost surely, 2^12226829 is an apocalyptic number.

It is an amenable number.

12226829 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226829 is an equidigital number, since it uses as much as digits as its factorization.

12226829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 12226829 is about 3496.6882903685. The cubic root of 12226829 is about 230.3763780779.

The spelling of 12226829 in words is "twelve million, two hundred twenty-six thousand, eight hundred twenty-nine".