12017227 has 2 divisors, whose sum is σ = 12017228. Its totient is φ = 12017226.

The previous prime is 12017221. The next prime is 12017231. The reversal of 12017227 is 72271021.

It is a strong prime.

It is an emirp because it is prime and its reverse (72271021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12017227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12017198 and 12017207.

It is not a weakly prime, because it can be changed into another prime (12017221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6008613 + 6008614.

It is an arithmetic number, because the mean of its divisors is an integer number (6008614).

Almost surely, 2^12017227 is an apocalyptic number.

12017227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12017227 is an equidigital number, since it uses as much as digits as its factorization.

12017227 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 12017227 is about 3466.5872266539. The cubic root of 12017227 is about 229.0523516396.

Adding to 12017227 its reverse (72271021), we get a palindrome (84288248).

The spelling of 12017227 in words is "twelve million, seventeen thousand, two hundred twenty-seven".