12227616187 has 2 divisors, whose sum is σ = 12227616188. Its totient is φ = 12227616186.

The previous prime is 12227616169. The next prime is 12227616211. The reversal of 12227616187 is 78161672221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12227616187 - 2³¹ = 10080132539 is a prime.

It is not a weakly prime, because it can be changed into another prime (12227616127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113808093 + 6113808094.

It is an arithmetic number, because the mean of its divisors is an integer number (6113808094).

Almost surely, 2^12227616187 is an apocalyptic number.

12227616187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12227616187 is an equidigital number, since it uses as much as digits as its factorization.

12227616187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 43.

The spelling of 12227616187 in words is "twelve billion, two hundred twenty-seven million, six hundred sixteen thousand, one hundred eighty-seven".