12101227 has 2 divisors, whose sum is σ = 12101228. Its totient is φ = 12101226.

The previous prime is 12101179. The next prime is 12101237. The reversal of 12101227 is 72210121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12101227 - 2⁷ = 12101099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12101227.

It is not a weakly prime, because it can be changed into another prime (12101237) 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, 6050613 + 6050614.

It is an arithmetic number, because the mean of its divisors is an integer number (6050614).

Almost surely, 2^12101227 is an apocalyptic number.

12101227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101227 is an equidigital number, since it uses as much as digits as its factorization.

12101227 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 12101227 is about 3478.6817905638. The cubic root of 12101227 is about 229.5848022878.

Adding to 12101227 its reverse (72210121), we get a palindrome (84311348).

The spelling of 12101227 in words is "twelve million, one hundred one thousand, two hundred twenty-seven".