22045002200 has 144 divisors (see below), whose sum is σ = 56685523680. Its totient is φ = 7965934080.

The previous prime is 22045002191. The next prime is 22045002233. The reversal of 22045002200 is 220054022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1581662 + ... + 1595538.

It is an arithmetic number, because the mean of its divisors is an integer number (393649470).

Almost surely, 2^22045002200 is an apocalyptic number.

22045002200 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 22045002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28342761840).

22045002200 is an abundant number, since it is smaller than the sum of its proper divisors (34640521480).

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

22045002200 is a wasteful number, since it uses less digits than its factorization.

22045002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13966 (or 13944 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

Adding to 22045002200 its reverse (220054022), we get a palindrome (22265056222).

The spelling of 22045002200 in words is "twenty-two billion, forty-five million, two thousand, two hundred".