12182921101825 has 6 divisors (see below), whose sum is σ = 15106822166294. Its totient is φ = 9746336881440.

The previous prime is 12182921101783. The next prime is 12182921101829. The reversal of 12182921101825 is 52810112928121.

It can be written as a sum of positive squares in 3 ways, for example, as 98071690896 + 12084849410929 = 313164^2 + 3476327^2 .

It is not a de Polignac number, because 12182921101825 - 2⁹ = 12182921101313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12182921101829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243658422012 + ... + 243658422061.

Almost surely, 2^{12182921101825} is an apocalyptic number.

It is an amenable number.

12182921101825 is a deficient number, since it is larger than the sum of its proper divisors (2923901064469).

12182921101825 is an equidigital number, since it uses as much as digits as its factorization.

12182921101825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487316844083 (or 487316844078 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 43.

The spelling of 12182921101825 in words is "twelve trillion, one hundred eighty-two billion, nine hundred twenty-one million, one hundred one thousand, eight hundred twenty-five".