12222778339 has 4 divisors (see below), whose sum is σ = 12223068160. Its totient is φ = 12222488520.

The previous prime is 12222778319. The next prime is 12222778349. The reversal of 12222778339 is 93387722221.

12222778339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93387722221 = 164839 ⋅566539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222778339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222778319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68067 + ... + 170524.

It is an arithmetic number, because the mean of its divisors is an integer number (3055767040).

Almost surely, 2^12222778339 is an apocalyptic number.

12222778339 is a deficient number, since it is larger than the sum of its proper divisors (289821).

12222778339 is an equidigital number, since it uses as much as digits as its factorization.

12222778339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289820.

The product of its digits is 508032, while the sum is 46.

The spelling of 12222778339 in words is "twelve billion, two hundred twenty-two million, seven hundred seventy-eight thousand, three hundred thirty-nine".