12189000227 has 2 divisors, whose sum is σ = 12189000228. Its totient is φ = 12189000226.

The previous prime is 12189000199. The next prime is 12189000269. The reversal of 12189000227 is 72200098121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12189000227 - 2⁸ = 12188999971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12189000193 and 12189000202.

It is not a weakly prime, because it can be changed into another prime (12189000827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6094500113 + 6094500114.

It is an arithmetic number, because the mean of its divisors is an integer number (6094500114).

Almost surely, 2^12189000227 is an apocalyptic number.

12189000227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12189000227 is an equidigital number, since it uses as much as digits as its factorization.

12189000227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 12189000227 its reverse (72200098121), we get a palindrome (84389098348).

The spelling of 12189000227 in words is "twelve billion, one hundred eighty-nine million, two hundred twenty-seven", and thus it is an aban number.