22204022240 has 96 divisors (see below), whose sum is σ = 53564353920. Its totient is φ = 8695360000.

The previous prime is 22204022237. The next prime is 22204022249. The reversal of 22204022240 is 4222040222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204022249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2364755 + ... + 2374125.

It is an arithmetic number, because the mean of its divisors is an integer number (557962020).

Almost surely, 2^22204022240 is an apocalyptic number.

22204022240 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 22204022240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26782176960).

22204022240 is an abundant number, since it is smaller than the sum of its proper divisors (31360331680).

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

22204022240 is a wasteful number, since it uses less digits than its factorization.

22204022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696 (or 9688 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22204022240 its reverse (4222040222), we get a palindrome (26426062462).

The spelling of 22204022240 in words is "twenty-two billion, two hundred four million, twenty-two thousand, two hundred forty".