2221444441 has 8 divisors (see below), whose sum is σ = 2250159264. Its totient is φ = 2192877120.

The previous prime is 2221444403. The next prime is 2221444481. The reversal of 2221444441 is 1444441222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221444441 - 2²¹ = 2219347289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221444481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6400 + ... + 66961.

It is an arithmetic number, because the mean of its divisors is an integer number (281269908).

Almost surely, 2^2221444441 is an apocalyptic number.

It is an amenable number.

2221444441 is a deficient number, since it is larger than the sum of its proper divisors (28714823).

2221444441 is a wasteful number, since it uses less digits than its factorization.

2221444441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73751.

The product of its digits is 8192, while the sum is 28.

The square root of 2221444441 is about 47132.2017414846. The cubic root of 2221444441 is about 1304.8036170972.

Adding to 2221444441 its reverse (1444441222), we get a palindrome (3665885663).

The spelling of 2221444441 in words is "two billion, two hundred twenty-one million, four hundred forty-four thousand, four hundred forty-one".