12011227 has 2 divisors, whose sum is σ = 12011228. Its totient is φ = 12011226.

The previous prime is 12011213. The next prime is 12011243. The reversal of 12011227 is 72211021.

It is an a-pointer prime, because the next prime (12011243) can be obtained adding 12011227 to its sum of digits (16).

It is a weak prime.

It is an emirp because it is prime and its reverse (72211021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12011227 - 2⁷ = 12011099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12011227.

It is not a weakly prime, because it can be changed into another prime (12011257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005613 + 6005614.

It is an arithmetic number, because the mean of its divisors is an integer number (6005614).

Almost surely, 2^12011227 is an apocalyptic number.

12011227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011227 is an equidigital number, since it uses as much as digits as its factorization.

12011227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 12011227 is about 3465.7217141600. The cubic root of 12011227 is about 229.0142246270.

Adding to 12011227 its reverse (72211021), we get a palindrome (84222248).

The spelling of 12011227 in words is "twelve million, eleven thousand, two hundred twenty-seven".