12124442171 has 2 divisors, whose sum is σ = 12124442172. Its totient is φ = 12124442170.

The previous prime is 12124442159. The next prime is 12124442189. The reversal of 12124442171 is 17124442121.

It is a weak prime.

It is an emirp because it is prime and its reverse (17124442121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12124442171 - 2⁶ = 12124442107 is a prime.

It is not a weakly prime, because it can be changed into another prime (12124442131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6062221085 + 6062221086.

It is an arithmetic number, because the mean of its divisors is an integer number (6062221086).

Almost surely, 2^12124442171 is an apocalyptic number.

12124442171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12124442171 is an equidigital number, since it uses as much as digits as its factorization.

12124442171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 29.

Adding to 12124442171 its reverse (17124442121), we get a palindrome (29248884292).

The spelling of 12124442171 in words is "twelve billion, one hundred twenty-four million, four hundred forty-two thousand, one hundred seventy-one".