12110021171 has 2 divisors, whose sum is σ = 12110021172. Its totient is φ = 12110021170.

The previous prime is 12110021141. The next prime is 12110021221. The reversal of 12110021171 is 17112001121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12110021171 is a prime.

It is a super-3 number, since 3×12110021171³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (12110021141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055010585 + 6055010586.

It is an arithmetic number, because the mean of its divisors is an integer number (6055010586).

Almost surely, 2^12110021171 is an apocalyptic number.

12110021171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110021171 is an equidigital number, since it uses as much as digits as its factorization.

12110021171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 12110021171 its reverse (17112001121), we get a palindrome (29222022292).

The spelling of 12110021171 in words is "twelve billion, one hundred ten million, twenty-one thousand, one hundred seventy-one".