22118427282 has 64 divisors (see below), whose sum is σ = 51448089600. Its totient is φ = 6208236480.

The previous prime is 22118427277. The next prime is 22118427283. The reversal of 22118427282 is 28272481122.

It is a self number, because there is not a number n which added to its sum of digits gives 22118427282.

It is not an unprimeable number, because it can be changed into a prime (22118427283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6389032 + ... + 6392492.

It is an arithmetic number, because the mean of its divisors is an integer number (803876400).

Almost surely, 2^22118427282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22118427282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25724044800).

22118427282 is an abundant number, since it is smaller than the sum of its proper divisors (29329662318).

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

22118427282 is a wasteful number, since it uses less digits than its factorization.

22118427282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111.

The product of its digits is 57344, while the sum is 39.

The spelling of 22118427282 in words is "twenty-two billion, one hundred eighteen million, four hundred twenty-seven thousand, two hundred eighty-two".