9005444223220 has 12 divisors (see below), whose sum is σ = 18911432868804. Its totient is φ = 3602177689280.

The previous prime is 9005444223197. The next prime is 9005444223221. The reversal of 9005444223220 is 223224445009.

It can be written as a sum of positive squares in 2 ways, for example, as 2829682451556 + 6175761771664 = 1682166^2 + 2485108^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9005444223220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9005444223221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225136105561 + ... + 225136105600.

It is an arithmetic number, because the mean of its divisors is an integer number (1575952739067).

Almost surely, 2^{9005444223220} is an apocalyptic number.

It is an amenable number.

9005444223220 is an abundant number, since it is smaller than the sum of its proper divisors (9905988645584).

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

9005444223220 is a wasteful number, since it uses less digits than its factorization.

9005444223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450272211170 (or 450272211168 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 9005444223220 its reverse (223224445009), we get a palindrome (9228668668229).

The spelling of 9005444223220 in words is "nine trillion, five billion, four hundred forty-four million, two hundred twenty-three thousand, two hundred twenty".