22012112223 has 12 divisors (see below), whose sum is σ = 31805782008. Its totient is φ = 14669891280.

The previous prime is 22012112209. The next prime is 22012112249. The reversal of 22012112223 is 32221121022.

It is not a de Polignac number, because 22012112223 - 2⁵ = 22012112191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22012112196 and 22012112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012112273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375333 + ... + 429998.

It is an arithmetic number, because the mean of its divisors is an integer number (2650481834).

Almost surely, 2^22012112223 is an apocalyptic number.

22012112223 is a deficient number, since it is larger than the sum of its proper divisors (9793669785).

22012112223 is a wasteful number, since it uses less digits than its factorization.

22012112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808374 (or 808371 counting only the distinct ones).

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

Adding to 22012112223 its reverse (32221121022), we get a palindrome (54233233245).

The spelling of 22012112223 in words is "twenty-two billion, twelve million, one hundred twelve thousand, two hundred twenty-three".