12022222222 has 48 divisors (see below), whose sum is σ = 19964140560. Its totient is φ = 5414086656.

The previous prime is 12022222217. The next prime is 12022222243. The reversal of 12022222222 is 22222222021.

It is a Harshad number since it is a multiple of its sum of digits (19).

12022222222 is a modest number, since divided by 222222 gives 12022 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12022222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3475918 + ... + 3479374.

It is an arithmetic number, because the mean of its divisors is an integer number (415919595).

Almost surely, 2^12022222222 is an apocalyptic number.

12022222222 is a deficient number, since it is larger than the sum of its proper divisors (7941918338).

12022222222 is a wasteful number, since it uses less digits than its factorization.

12022222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 12022222222 its reverse (22222222021), we get a palindrome (34244444243).

The spelling of 12022222222 in words is "twelve billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".