1228171175167 has 2 divisors, whose sum is σ = 1228171175168. Its totient is φ = 1228171175166.

The previous prime is 1228171175159. The next prime is 1228171175177. The reversal of 1228171175167 is 7615711718221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1228171175167 - 2³ = 1228171175159 is a prime.

It is a super-2 number, since 2×1228171175167² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1228171175167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228171175107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614085587583 + 614085587584.

It is an arithmetic number, because the mean of its divisors is an integer number (614085587584).

Almost surely, 2^{1228171175167} is an apocalyptic number.

1228171175167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228171175167 is an equidigital number, since it uses as much as digits as its factorization.

1228171175167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 329280, while the sum is 49.

The spelling of 1228171175167 in words is "one trillion, two hundred twenty-eight billion, one hundred seventy-one million, one hundred seventy-five thousand, one hundred sixty-seven".