22223312112 has 80 divisors (see below), whose sum is σ = 58453401600. Its totient is φ = 7273593600.

The previous prime is 22223312087. The next prime is 22223312117. The reversal of 22223312112 is 21121332222.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223312117) 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 15 ways as a sum of consecutive naturals, for example, 1747537 + ... + 1760207.

It is an arithmetic number, because the mean of its divisors is an integer number (730667520).

Almost surely, 2^22223312112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22223312112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29226700800).

22223312112 is an abundant number, since it is smaller than the sum of its proper divisors (36230089488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22223312112 is a wasteful number, since it uses less digits than its factorization.

22223312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13342 (or 13336 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

Adding to 22223312112 its reverse (21121332222), we get a palindrome (43344644334).

The spelling of 22223312112 in words is "twenty-two billion, two hundred twenty-three million, three hundred twelve thousand, one hundred twelve".