1222112223 has 24 divisors (see below), whose sum is σ = 1783716480. Its totient is φ = 806274000.

The previous prime is 1222112219. The next prime is 1222112239. The reversal of 1222112223 is 3222112221.

It is not a de Polignac number, because 1222112223 - 2² = 1222112219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222112196 and 1222112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222152223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366558 + ... + 369876.

It is an arithmetic number, because the mean of its divisors is an integer number (74321520).

Almost surely, 2^1222112223 is an apocalyptic number.

1222112223 is a deficient number, since it is larger than the sum of its proper divisors (561604257).

1222112223 is a wasteful number, since it uses less digits than its factorization.

1222112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739 (or 3736 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1222112223 is about 34958.7217014581. The cubic root of 1222112223 is about 1069.1460339198.

Adding to 1222112223 its reverse (3222112221), we get a palindrome (4444224444).

The spelling of 1222112223 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-three".