12224791 has 2 divisors, whose sum is σ = 12224792. Its totient is φ = 12224790.

The previous prime is 12224783. The next prime is 12224831. The reversal of 12224791 is 19742221.

12224791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (19742221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12224791 - 2³ = 12224783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12224701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112395 + 6112396.

It is an arithmetic number, because the mean of its divisors is an integer number (6112396).

Almost surely, 2^12224791 is an apocalyptic number.

12224791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224791 is an equidigital number, since it uses as much as digits as its factorization.

12224791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 12224791 is about 3496.3968596256. The cubic root of 12224791 is about 230.3635774532.

The spelling of 12224791 in words is "twelve million, two hundred twenty-four thousand, seven hundred ninety-one".