22100022222 has 16 divisors (see below), whose sum is σ = 44201538432. Its totient is φ = 7366425080.

The previous prime is 22100022211. The next prime is 22100022223. The reversal of 22100022222 is 22222000122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100022223) 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 7 ways as a sum of consecutive naturals, for example, 252397 + ... + 328487.

It is an arithmetic number, because the mean of its divisors is an integer number (2762596152).

Almost surely, 2^22100022222 is an apocalyptic number.

22100022222 is an abundant number, since it is smaller than the sum of its proper divisors (22101516210).

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

22100022222 is a wasteful number, since it uses less digits than its factorization.

22100022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124503.

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

Adding to 22100022222 its reverse (22222000122), we get a palindrome (44322022344).

The spelling of 22100022222 in words is "twenty-two billion, one hundred million, twenty-two thousand, two hundred twenty-two".