2201221444 has 6 divisors (see below), whose sum is σ = 3852137534. Its totient is φ = 1100610720.

The previous prime is 2201221439. The next prime is 2201221447. The reversal of 2201221444 is 4441221022.

It can be written as a sum of positive squares in only one way, i.e., 1997017344 + 204204100 = 44688^2 + 14290^2 .

It is not an unprimeable number, because it can be changed into a prime (2201221447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275152677 + ... + 275152684.

Almost surely, 2^2201221444 is an apocalyptic number.

It is an amenable number.

2201221444 is a deficient number, since it is larger than the sum of its proper divisors (1650916090).

2201221444 is a wasteful number, since it uses less digits than its factorization.

2201221444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550305365 (or 550305363 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2201221444 is about 46917.1764282549. The cubic root of 2201221444 is about 1300.8320992320.

Adding to 2201221444 its reverse (4441221022), we get a palindrome (6642442466).

The spelling of 2201221444 in words is "two billion, two hundred one million, two hundred twenty-one thousand, four hundred forty-four".