22212100223 has 4 divisors (see below), whose sum is σ = 22217997360. Its totient is φ = 22206203088.

The previous prime is 22212100217. The next prime is 22212100241. The reversal of 22212100223 is 32200121222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212100223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212100213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942915 + ... + 2950452.

It is an arithmetic number, because the mean of its divisors is an integer number (5554499340).

Almost surely, 2^22212100223 is an apocalyptic number.

22212100223 is a deficient number, since it is larger than the sum of its proper divisors (5897137).

22212100223 is an equidigital number, since it uses as much as digits as its factorization.

22212100223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897136.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22212100223 its reverse (32200121222), we get a palindrome (54412221445).

The spelling of 22212100223 in words is "twenty-two billion, two hundred twelve million, one hundred thousand, two hundred twenty-three".