22241442500 has 60 divisors (see below), whose sum is σ = 48671279580. Its totient is φ = 8890416000.

The previous prime is 22241442493. The next prime is 22241442539. The reversal of 22241442500 is 524414222.

It can be written as a sum of positive squares in 10 ways, for example, as 5914225216 + 16327217284 = 76904^2 + 127778^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22241442500.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5770574 + ... + 5774426.

It is an arithmetic number, because the mean of its divisors is an integer number (811187993).

Almost surely, 2^22241442500 is an apocalyptic number.

22241442500 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 22241442500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24335639790).

22241442500 is an abundant number, since it is smaller than the sum of its proper divisors (26429837080).

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

22241442500 is a wasteful number, since it uses less digits than its factorization.

22241442500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186 (or 6169 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 22241442500 its reverse (524414222), we get a palindrome (22765856722).

The spelling of 22241442500 in words is "twenty-two billion, two hundred forty-one million, four hundred forty-two thousand, five hundred".