12220321222 has 16 divisors (see below), whose sum is σ = 19133021952. Its totient is φ = 5842801800.

The previous prime is 12220321177. The next prime is 12220321279. The reversal of 12220321222 is 22212302221.

12220321222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12220321222.

It is a congruent number.

It is an unprimeable number.

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, 129097 + ... + 202747.

It is an arithmetic number, because the mean of its divisors is an integer number (1195813872).

Almost surely, 2^12220321222 is an apocalyptic number.

12220321222 is a deficient number, since it is larger than the sum of its proper divisors (6912700730).

12220321222 is a wasteful number, since it uses less digits than its factorization.

12220321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77283.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12220321222 its reverse (22212302221), we get a palindrome (34432623443).

The spelling of 12220321222 in words is "twelve billion, two hundred twenty million, three hundred twenty-one thousand, two hundred twenty-two".