12212184239 has 4 divisors (see below), whose sum is σ = 12212815056. Its totient is φ = 12211553424.

The previous prime is 12212184233. The next prime is 12212184289. The reversal of 12212184239 is 93248121221.

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

It is a cyclic number.

It is not a de Polignac number, because 12212184239 - 2⁴ = 12212184223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212184199 and 12212184208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212184233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285419 + ... + 325404.

It is an arithmetic number, because the mean of its divisors is an integer number (3053203764).

Almost surely, 2^12212184239 is an apocalyptic number.

12212184239 is a deficient number, since it is larger than the sum of its proper divisors (630817).

12212184239 is an equidigital number, since it uses as much as digits as its factorization.

12212184239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630816.

The product of its digits is 13824, while the sum is 35.

The spelling of 12212184239 in words is "twelve billion, two hundred twelve million, one hundred eighty-four thousand, two hundred thirty-nine".