1001222110171 has 2 divisors, whose sum is σ = 1001222110172. Its totient is φ = 1001222110170.

The previous prime is 1001222110157. The next prime is 1001222110211. The reversal of 1001222110171 is 1710112221001.

It is a weak prime.

It is an emirp because it is prime and its reverse (1710112221001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001222110171 - 2⁷ = 1001222110043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001222110571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611055085 + 500611055086.

It is an arithmetic number, because the mean of its divisors is an integer number (500611055086).

Almost surely, 2^{1001222110171} is an apocalyptic number.

1001222110171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001222110171 is an equidigital number, since it uses as much as digits as its factorization.

1001222110171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 1001222110171 its reverse (1710112221001), we get a palindrome (2711334331172).

The spelling of 1001222110171 in words is "one trillion, one billion, two hundred twenty-two million, one hundred ten thousand, one hundred seventy-one".