22200022332 has 72 divisors (see below), whose sum is σ = 59120989200. Its totient is φ = 7004510208.

The previous prime is 22200022321. The next prime is 22200022379. The reversal of 22200022332 is 23322000222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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, 819094 + ... + 845762.

It is an arithmetic number, because the mean of its divisors is an integer number (821124850).

Almost surely, 2^22200022332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22200022332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29560494600).

22200022332 is an abundant number, since it is smaller than the sum of its proper divisors (36920966868).

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

22200022332 is a wasteful number, since it uses less digits than its factorization.

22200022332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27915 (or 27910 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 22200022332 its reverse (23322000222), we get a palindrome (45522022554).

The spelling of 22200022332 in words is "twenty-two billion, two hundred million, twenty-two thousand, three hundred thirty-two".