12222345318 has 16 divisors (see below), whose sum is σ = 24454589040. Its totient is φ = 4072465376.

The previous prime is 12222345301. The next prime is 12222345329. The reversal of 12222345318 is 81354322221.

It is a super-2 number, since 2×12222345318² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396333 + ... + 426056.

It is an arithmetic number, because the mean of its divisors is an integer number (1528411815).

Almost surely, 2^12222345318 is an apocalyptic number.

12222345318 is an abundant number, since it is smaller than the sum of its proper divisors (12232243722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222345318 is a wasteful number, since it uses less digits than its factorization.

12222345318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824871.

The product of its digits is 23040, while the sum is 33.

Adding to 12222345318 its reverse (81354322221), we get a palindrome (93576667539).

The spelling of 12222345318 in words is "twelve billion, two hundred twenty-two million, three hundred forty-five thousand, three hundred eighteen".