22244021300 has 36 divisors (see below), whose sum is σ = 48329367660. Its totient is φ = 8886577920.

The previous prime is 22244021299. The next prime is 22244021309. The reversal of 22244021300 is 312044222.

It can be written as a sum of positive squares in 6 ways, for example, as 1098789904 + 21145231396 = 33148^2 + 145414^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244021309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56579 + ... + 218378.

It is an arithmetic number, because the mean of its divisors is an integer number (1342482435).

Almost surely, 2^22244021300 is an apocalyptic number.

22244021300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244021300 is an abundant number, since it is smaller than the sum of its proper divisors (26085346360).

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

22244021300 is a wasteful number, since it uses less digits than its factorization.

22244021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275780 (or 275773 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22244021300 its reverse (312044222), we get a palindrome (22556065522).

The spelling of 22244021300 in words is "twenty-two billion, two hundred forty-four million, twenty-one thousand, three hundred".