12223111222 has 16 divisors (see below), whose sum is σ = 20955763872. Its totient is φ = 5238011520.

The previous prime is 12223111213. The next prime is 12223111223. The reversal of 12223111222 is 22211132221.

It is a self number, because there is not a number n which added to its sum of digits gives 12223111222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223111223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159822 + ... + 223582.

It is an arithmetic number, because the mean of its divisors is an integer number (1309735242).

Almost surely, 2^12223111222 is an apocalyptic number.

12223111222 is a deficient number, since it is larger than the sum of its proper divisors (8732652650).

12223111222 is a wasteful number, since it uses less digits than its factorization.

12223111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77463.

The product of its digits is 192, while the sum is 19.

Adding to 12223111222 its reverse (22211132221), we get a palindrome (34434243443).

The spelling of 12223111222 in words is "twelve billion, two hundred twenty-three million, one hundred eleven thousand, two hundred twenty-two".