12185224893 has 12 divisors (see below), whose sum is σ = 17640617280. Its totient is φ = 8105143176.

The previous prime is 12185224847. The next prime is 12185224981. The reversal of 12185224893 is 39842258121.

It is not a de Polignac number, because 12185224893 - 2¹² = 12185220797 is a prime.

It is a super-2 number, since 2×12185224893² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12185224813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1524133 + ... + 1532106.

It is an arithmetic number, because the mean of its divisors is an integer number (1470051440).

Almost surely, 2^12185224893 is an apocalyptic number.

It is an amenable number.

12185224893 is a deficient number, since it is larger than the sum of its proper divisors (5455392387).

12185224893 is a wasteful number, since it uses less digits than its factorization.

12185224893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056688 (or 3056685 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 12185224893 in words is "twelve billion, one hundred eighty-five million, two hundred twenty-four thousand, eight hundred ninety-three".