22120112223 has 12 divisors (see below), whose sum is σ = 34855934568. Its totient is φ = 13406128560.

The previous prime is 22120112219. The next prime is 22120112233. The reversal of 22120112223 is 32221102122.

It is not a de Polignac number, because 22120112223 - 2² = 22120112219 is a prime.

It is a super-2 number, since 2×22120112223² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22120112196 and 22120112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120112233) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 111717640 + ... + 111717837.

It is an arithmetic number, because the mean of its divisors is an integer number (2904661214).

Almost surely, 2^22120112223 is an apocalyptic number.

22120112223 is a deficient number, since it is larger than the sum of its proper divisors (12735822345).

22120112223 is a wasteful number, since it uses less digits than its factorization.

22120112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223435494 (or 223435491 counting only the distinct ones).

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

Adding to 22120112223 its reverse (32221102122), we get a palindrome (54341214345).

The spelling of 22120112223 in words is "twenty-two billion, one hundred twenty million, one hundred twelve thousand, two hundred twenty-three".