12220111222 has 8 divisors (see below), whose sum is σ = 19996545672. Its totient is φ = 5554596000.

The previous prime is 12220111153. The next prime is 12220111243. The reversal of 12220111222 is 22211102221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12220111222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220111196 and 12220111205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277729779 + ... + 277729822.

It is an arithmetic number, because the mean of its divisors is an integer number (2499568209).

Almost surely, 2^12220111222 is an apocalyptic number.

12220111222 is a deficient number, since it is larger than the sum of its proper divisors (7776434450).

12220111222 is a wasteful number, since it uses less digits than its factorization.

12220111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555459614.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12220111222 its reverse (22211102221), we get a palindrome (34431213443).

Subtracting 12220111222 from its reverse (22211102221), we obtain a palindrome (9990990999).

The spelling of 12220111222 in words is "twelve billion, two hundred twenty million, one hundred eleven thousand, two hundred twenty-two".