22000212222 has 16 divisors (see below), whose sum is σ = 45073606032. Its totient is φ = 7154540480.

The previous prime is 22000212217. The next prime is 22000212229. The reversal of 22000212222 is 22221200022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000212229) 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 7 ways as a sum of consecutive naturals, for example, 44715633 + ... + 44716124.

It is an arithmetic number, because the mean of its divisors is an integer number (2817100377).

Almost surely, 2^22000212222 is an apocalyptic number.

22000212222 is an abundant number, since it is smaller than the sum of its proper divisors (23073393810).

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

22000212222 is a wasteful number, since it uses less digits than its factorization.

22000212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89431803.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22000212222 its reverse (22221200022), we get a palindrome (44221412244).

The spelling of 22000212222 in words is "twenty-two billion, two hundred twelve thousand, two hundred twenty-two".