12226849 has 2 divisors, whose sum is σ = 12226850. Its totient is φ = 12226848.

The previous prime is 12226831. The next prime is 12226853. The reversal of 12226849 is 94862221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6466849 + 5760000 = 2543^2 + 2400^2 .

It is an emirp because it is prime and its reverse (94862221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12226849 - 2⁹ = 12226337 is a prime.

It is not a weakly prime, because it can be changed into another prime (12226829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113424 + 6113425.

It is an arithmetic number, because the mean of its divisors is an integer number (6113425).

Almost surely, 2^12226849 is an apocalyptic number.

It is an amenable number.

12226849 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226849 is an equidigital number, since it uses as much as digits as its factorization.

12226849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 12226849 is about 3496.6911502162. The cubic root of 12226849 is about 230.3765036904.

The spelling of 12226849 in words is "twelve million, two hundred twenty-six thousand, eight hundred forty-nine".