2221200344 has 64 divisors (see below), whose sum is σ = 4893972480. Its totient is φ = 934560000.

The previous prime is 2221200341. The next prime is 2221200349. The reversal of 2221200344 is 4430021222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221200341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45044 + ... + 80444.

It is an arithmetic number, because the mean of its divisors is an integer number (76468320).

Almost surely, 2^2221200344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221200344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446986240).

2221200344 is an abundant number, since it is smaller than the sum of its proper divisors (2672772136).

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

2221200344 is a wasteful number, since it uses less digits than its factorization.

2221200344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35472 (or 35468 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2221200344 is about 47129.6121774835. The cubic root of 2221200344 is about 1304.7558238222.

Adding to 2221200344 its reverse (4430021222), we get a palindrome (6651221566).

The spelling of 2221200344 in words is "two billion, two hundred twenty-one million, two hundred thousand, three hundred forty-four".