22244425500 has 192 divisors, whose sum is σ = 70812758016. Its totient is φ = 5381280000.

The previous prime is 22244425477. The next prime is 22244425531. The reversal of 22244425500 is 552444222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10014390 + ... + 10016610.

It is an arithmetic number, because the mean of its divisors is an integer number (368816448).

Almost surely, 2^22244425500 is an apocalyptic number.

22244425500 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 22244425500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35406379008).

22244425500 is an abundant number, since it is smaller than the sum of its proper divisors (48568332516).

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

22244425500 is a wasteful number, since it uses less digits than its factorization.

22244425500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861 (or 2849 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 22244425500 its reverse (552444222), we get a palindrome (22796869722).

It can be divided in two parts, 22244 and 425500, that added together give a palindrome (447744).

The spelling of 22244425500 in words is "twenty-two billion, two hundred forty-four million, four hundred twenty-five thousand, five hundred".