12125170850 has 24 divisors (see below), whose sum is σ = 24287651220. Its totient is φ = 4476985920.

The previous prime is 12125170823. The next prime is 12125170867. The reversal of 12125170850 is 5807152121.

It can be written as a sum of positive squares in 6 ways, for example, as 66275881 + 12058894969 = 8141^2 + 109813^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9326405 + ... + 9327704.

Almost surely, 2^12125170850 is an apocalyptic number.

12125170850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12125170850 is an abundant number, since it is smaller than the sum of its proper divisors (12162480370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12125170850 is a wasteful number, since it uses less digits than its factorization.

12125170850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18654134 (or 18654129 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

The spelling of 12125170850 in words is "twelve billion, one hundred twenty-five million, one hundred seventy thousand, eight hundred fifty".