12239225186 has 4 divisors (see below), whose sum is σ = 18358837782. Its totient is φ = 6119612592.

The previous prime is 12239225171. The next prime is 12239225189. The reversal of 12239225186 is 68152293221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68152293221 = 122833 ⋅554837.

It can be written as a sum of positive squares in only one way, i.e., 10533122161 + 1706103025 = 102631^2 + 41305^2 .

It is not an unprimeable number, because it can be changed into a prime (12239225189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3059806295 + ... + 3059806298.

Almost surely, 2^12239225186 is an apocalyptic number.

12239225186 is a deficient number, since it is larger than the sum of its proper divisors (6119612596).

12239225186 is an equidigital number, since it uses as much as digits as its factorization.

12239225186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119612595.

The product of its digits is 103680, while the sum is 41.

The spelling of 12239225186 in words is "twelve billion, two hundred thirty-nine million, two hundred twenty-five thousand, one hundred eighty-six".