20444022200 has 96 divisors (see below), whose sum is σ = 54363187200. Its totient is φ = 7004154240.

The previous prime is 20444022191. The next prime is 20444022251. The reversal of 20444022200 is 222044402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2189141 + ... + 2198459.

It is an arithmetic number, because the mean of its divisors is an integer number (566283200).

Almost surely, 2^20444022200 is an apocalyptic number.

20444022200 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 20444022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27181593600).

20444022200 is an abundant number, since it is smaller than the sum of its proper divisors (33919165000).

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

20444022200 is a wasteful number, since it uses less digits than its factorization.

20444022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10909 (or 10900 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20444022200 its reverse (222044402), we get a palindrome (20666066602).

The spelling of 20444022200 in words is "twenty billion, four hundred forty-four million, twenty-two thousand, two hundred".