2221322130 has 80 divisors (see below), whose sum is σ = 5984725824. Its totient is φ = 591179040.

The previous prime is 2221322071. The next prime is 2221322203. The reversal of 2221322130 is 312231222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 453595 + ... + 458465.

Almost surely, 2^2221322130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221322130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2992362912).

2221322130 is an abundant number, since it is smaller than the sum of its proper divisors (3763403694).

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

2221322130 is a wasteful number, since it uses less digits than its factorization.

2221322130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5453 (or 5444 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2221322130 is about 47130.9041924723. The cubic root of 2221322130 is about 1304.7796695008.

Adding to 2221322130 its reverse (312231222), we get a palindrome (2533553352).

The spelling of 2221322130 in words is "two billion, two hundred twenty-one million, three hundred twenty-two thousand, one hundred thirty".