11122171 has 2 divisors, whose sum is σ = 11122172. Its totient is φ = 11122170.

The previous prime is 11122141. The next prime is 11122187. The reversal of 11122171 is 17122111.

It is an a-pointer prime, because the next prime (11122187) can be obtained adding 11122171 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11122171 - 2¹⁹ = 10597883 is a prime.

It is not a weakly prime, because it can be changed into another prime (11122141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561085 + 5561086.

It is an arithmetic number, because the mean of its divisors is an integer number (5561086).

Almost surely, 2^11122171 is an apocalyptic number.

11122171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122171 is an equidigital number, since it uses as much as digits as its factorization.

11122171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28, while the sum is 16.

The square root of 11122171 is about 3334.9919040381. The cubic root of 11122171 is about 223.2183306824.

Adding to 11122171 its reverse (17122111), we get a palindrome (28244282).

The spelling of 11122171 in words is "eleven million, one hundred twenty-two thousand, one hundred seventy-one".