112221122171 has 2 divisors, whose sum is σ = 112221122172. Its totient is φ = 112221122170.

The previous prime is 112221122113. The next prime is 112221122287. The reversal of 112221122171 is 171221122211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112221122171 - 2¹⁰ = 112221121147 is a prime.

It is a super-2 number, since 2×112221122171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112221122371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110561085 + 56110561086.

It is an arithmetic number, because the mean of its divisors is an integer number (56110561086).

Almost surely, 2^112221122171 is an apocalyptic number.

112221122171 is a deficient number, since it is larger than the sum of its proper divisors (1).

112221122171 is an equidigital number, since it uses as much as digits as its factorization.

112221122171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 23.

Adding to 112221122171 its reverse (171221122211), we get a palindrome (283442244382).

The spelling of 112221122171 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred seventy-one".