12228707 has 2 divisors, whose sum is σ = 12228708. Its totient is φ = 12228706.

The previous prime is 12228683. The next prime is 12228721. The reversal of 12228707 is 70782221.

12228707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12228707 - 2⁸ = 12228451 is a prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 12228707.

It is not a weakly prime, because it can be changed into another prime (12228767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6114353 + 6114354.

It is an arithmetic number, because the mean of its divisors is an integer number (6114354).

Almost surely, 2^12228707 is an apocalyptic number.

12228707 is a deficient number, since it is larger than the sum of its proper divisors (1).

12228707 is an equidigital number, since it uses as much as digits as its factorization.

12228707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12228707 is about 3496.9568198650. The cubic root of 12228707 is about 230.3881724875.

The spelling of 12228707 in words is "twelve million, two hundred twenty-eight thousand, seven hundred seven".