22541440000 has 110 divisors (see below), whose sum is σ = 56309657954. Its totient is φ = 9016320000.

The previous prime is 22541439997. The next prime is 22541440021. The reversal of 22541440000 is 4414522.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 3704426496 + 18837013504 = 60864^2 + 137248^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 622390 + ... + 657610.

Almost surely, 2^22541440000 is an apocalyptic number.

22541440000 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 22541440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28154828977).

22541440000 is an abundant number, since it is smaller than the sum of its proper divisors (33768217954).

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

22541440000 is an frugal number, since it uses more digits than its factorization.

22541440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35261 (or 35228 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 22541440000 its reverse (4414522), we get a palindrome (22545854522).

The spelling of 22541440000 in words is "twenty-two billion, five hundred forty-one million, four hundred forty thousand".