1225717128227 has 2 divisors, whose sum is σ = 1225717128228. Its totient is φ = 1225717128226.

The previous prime is 1225717128149. The next prime is 1225717128247. The reversal of 1225717128227 is 7228217175221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225717128227 - 2²⁴ = 1225700351011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225717128247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612858564113 + 612858564114.

It is an arithmetic number, because the mean of its divisors is an integer number (612858564114).

Almost surely, 2^{1225717128227} is an apocalyptic number.

1225717128227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225717128227 is an equidigital number, since it uses as much as digits as its factorization.

1225717128227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 439040, while the sum is 47.

The spelling of 1225717128227 in words is "one trillion, two hundred twenty-five billion, seven hundred seventeen million, one hundred twenty-eight thousand, two hundred twenty-seven".