12217027 has 2 divisors, whose sum is σ = 12217028. Its totient is φ = 12217026.

The previous prime is 12216991. The next prime is 12217097. The reversal of 12217027 is 72071221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12217027 - 2¹⁹ = 11692739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12216989 and 12217007.

It is not a weakly prime, because it can be changed into another prime (12217097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6108513 + 6108514.

It is an arithmetic number, because the mean of its divisors is an integer number (6108514).

Almost surely, 2^12217027 is an apocalyptic number.

12217027 is a deficient number, since it is larger than the sum of its proper divisors (1).

12217027 is an equidigital number, since it uses as much as digits as its factorization.

12217027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 12217027 is about 3495.2863974215. The cubic root of 12217027 is about 230.3147989347.

Adding to 12217027 its reverse (72071221), we get a palindrome (84288248).

The spelling of 12217027 in words is "twelve million, two hundred seventeen thousand, twenty-seven".