22203212223 has 24 divisors (see below), whose sum is σ = 31620976128. Its totient is φ = 13854072528.

The previous prime is 22203212189. The next prime is 22203212231. The reversal of 22203212223 is 32221230222.

It is not a de Polignac number, because 22203212223 - 2¹⁶ = 22203146687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22203212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203212233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33615 + ... + 213392.

It is an arithmetic number, because the mean of its divisors is an integer number (1317540672).

Almost surely, 2^22203212223 is an apocalyptic number.

22203212223 is a deficient number, since it is larger than the sum of its proper divisors (9417763905).

22203212223 is a wasteful number, since it uses less digits than its factorization.

22203212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247131 (or 247112 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22203212223 its reverse (32221230222), we get a palindrome (54424442445).

The spelling of 22203212223 in words is "twenty-two billion, two hundred three million, two hundred twelve thousand, two hundred twenty-three".