12000122171 has 2 divisors, whose sum is σ = 12000122172. Its totient is φ = 12000122170.

The previous prime is 12000122153. The next prime is 12000122219. The reversal of 12000122171 is 17122100021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12000122171 - 2¹⁸ = 11999860027 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000122111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000061085 + 6000061086.

It is an arithmetic number, because the mean of its divisors is an integer number (6000061086).

Almost surely, 2^12000122171 is an apocalyptic number.

12000122171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000122171 is an equidigital number, since it uses as much as digits as its factorization.

12000122171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12000122171 its reverse (17122100021), we get a palindrome (29122222192).

The spelling of 12000122171 in words is "twelve billion, one hundred twenty-two thousand, one hundred seventy-one".