12225779 has 2 divisors, whose sum is σ = 12225780. Its totient is φ = 12225778.

The previous prime is 12225769. The next prime is 12225823. The reversal of 12225779 is 97752221.

12225779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12225779 - 2¹⁶ = 12160243 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (12225709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112889 + 6112890.

It is an arithmetic number, because the mean of its divisors is an integer number (6112890).

Almost surely, 2^12225779 is an apocalyptic number.

12225779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225779 is an equidigital number, since it uses as much as digits as its factorization.

12225779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 12225779 is about 3496.5381450801. The cubic root of 12225779 is about 230.3697832330.

The spelling of 12225779 in words is "twelve million, two hundred twenty-five thousand, seven hundred seventy-nine".