12629220171 has 4 divisors (see below), whose sum is σ = 16838960232. Its totient is φ = 8419480112.

The previous prime is 12629220133. The next prime is 12629220209. The reversal of 12629220171 is 17102292621.

12629220171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12629220133) and next prime (12629220209).

It is a cyclic number.

It is not a de Polignac number, because 12629220171 - 2¹⁰ = 12629219147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12629222171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2104870026 + ... + 2104870031.

It is an arithmetic number, because the mean of its divisors is an integer number (4209740058).

Almost surely, 2^12629220171 is an apocalyptic number.

12629220171 is a deficient number, since it is larger than the sum of its proper divisors (4209740061).

12629220171 is an equidigital number, since it uses as much as digits as its factorization.

12629220171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209740060.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 12629220171 in words is "twelve billion, six hundred twenty-nine million, two hundred twenty thousand, one hundred seventy-one".