22232221100 has 108 divisors (see below), whose sum is σ = 51159866184. Its totient is φ = 8384636160.

The previous prime is 22232221073. The next prime is 22232221111. The reversal of 22232221100 is 112223222.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8193344 + ... + 8196056.

Almost surely, 2^22232221100 is an apocalyptic number.

22232221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25579933092).

22232221100 is an abundant number, since it is smaller than the sum of its proper divisors (28927645084).

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

22232221100 is a wasteful number, since it uses less digits than its factorization.

22232221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992 (or 2966 counting only the distinct ones).

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

Adding to 22232221100 its reverse (112223222), we get a palindrome (22344444322).

The spelling of 22232221100 in words is "twenty-two billion, two hundred thirty-two million, two hundred twenty-one thousand, one hundred".