22232240442 has 48 divisors (see below), whose sum is σ = 50793437760. Its totient is φ = 7008477696.

The previous prime is 22232240441. The next prime is 22232240489. The reversal of 22232240442 is 24404223222.

22232240442 is a `hidden beast` number, since 22 + 232 + 2 + 404 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (22232240441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141003 + ... + 253665.

It is an arithmetic number, because the mean of its divisors is an integer number (1058196620).

Almost surely, 2^22232240442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232240442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25396718880).

22232240442 is an abundant number, since it is smaller than the sum of its proper divisors (28561197318).

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

22232240442 is a wasteful number, since it uses less digits than its factorization.

22232240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113267 (or 113264 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 22232240442 its reverse (24404223222), we get a palindrome (46636463664).

The spelling of 22232240442 in words is "twenty-two billion, two hundred thirty-two million, two hundred forty thousand, four hundred forty-two".