12471227 has 2 divisors, whose sum is σ = 12471228. Its totient is φ = 12471226.

The previous prime is 12471223. The next prime is 12471229. The reversal of 12471227 is 72217421.

It is a strong prime.

It is an emirp because it is prime and its reverse (72217421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12471227 - 2² = 12471223 is a prime.

Together with 12471229, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12471196 and 12471205.

It is not a weakly prime, because it can be changed into another prime (12471223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6235613 + 6235614.

It is an arithmetic number, because the mean of its divisors is an integer number (6235614).

Almost surely, 2^12471227 is an apocalyptic number.

12471227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12471227 is an equidigital number, since it uses as much as digits as its factorization.

12471227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 26.

The square root of 12471227 is about 3531.4624449369. The cubic root of 12471227 is about 231.9012349622.

Adding to 12471227 its reverse (72217421), we get a palindrome (84688648).

The spelling of 12471227 in words is "twelve million, four hundred seventy-one thousand, two hundred twenty-seven".