2221300000 has 144 divisors (see below), whose sum is σ = 5546598120. Its totient is φ = 875520000.

The previous prime is 2221299989. The next prime is 2221300007. The reversal of 2221300000 is 31222.

It can be written as a sum of positive squares in 12 ways, for example, as 534719376 + 1686580624 = 23124^2 + 41068^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 2221300000.

It is not an unprimeable number, because it can be changed into a prime (2221300007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9699886 + ... + 9700114.

Almost surely, 2^2221300000 is an apocalyptic number.

2221300000 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 2221300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2773299060).

2221300000 is an abundant number, since it is smaller than the sum of its proper divisors (3325298120).

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

2221300000 is an frugal number, since it uses more digits than its factorization.

2221300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2221300000 is about 47130.6694202406. The cubic root of 2221300000 is about 1304.7753365153.

Adding to 2221300000 its reverse (31222), we get a palindrome (2221331222).

The spelling of 2221300000 in words is "two billion, two hundred twenty-one million, three hundred thousand".