12222878319 has 8 divisors (see below), whose sum is σ = 18107967920. Its totient is φ = 8148585528.

The previous prime is 12222878287. The next prime is 12222878347. The reversal of 12222878319 is 91387822221.

12222878319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12222878319 - 2⁵ = 12222878287 is a prime.

It is a super-2 number, since 2×12222878319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222878359) 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 7 ways as a sum of consecutive naturals, for example, 226349572 + ... + 226349625.

It is an arithmetic number, because the mean of its divisors is an integer number (2263495990).

Almost surely, 2^12222878319 is an apocalyptic number.

12222878319 is a deficient number, since it is larger than the sum of its proper divisors (5885089601).

12222878319 is an equidigital number, since it uses as much as digits as its factorization.

12222878319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452699206 (or 452699200 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 12222878319 in words is "twelve billion, two hundred twenty-two million, eight hundred seventy-eight thousand, three hundred nineteen".