22105440000 has 1440 divisors, whose sum is σ = 101145623040. Its totient is φ = 4644864000.

The previous prime is 22105439981. The next prime is 22105440013. The reversal of 22105440000 is 4450122.

22105440000 is a `hidden beast` number, since 2 + 210 + 54 + 400 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 514079979 + ... + 514080021.

It is an arithmetic number, because the mean of its divisors is an integer number (70240016).

Almost surely, 2^22105440000 is an apocalyptic number.

22105440000 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 22105440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50572811520).

22105440000 is an abundant number, since it is smaller than the sum of its proper divisors (79040183040).

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

22105440000 is an equidigital number, since it uses as much as digits as its factorization.

22105440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 22105440000 its reverse (4450122), we get a palindrome (22109890122).

The spelling of 22105440000 in words is "twenty-two billion, one hundred five million, four hundred forty thousand".