4400221331 has 4 divisors (see below), whose sum is σ = 4800241464. Its totient is φ = 4000201200.

The previous prime is 4400221297. The next prime is 4400221339. The reversal of 4400221331 is 1331220044.

4400221331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4400221331 is a prime.

It is a super-2 number, since 2×4400221331² = 38723895523574823122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4400221339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200010050 + ... + 200010071.

It is an arithmetic number, because the mean of its divisors is an integer number (1200060366).

Almost surely, 2^4400221331 is an apocalyptic number.

4400221331 is a deficient number, since it is larger than the sum of its proper divisors (400020133).

4400221331 is a wasteful number, since it uses less digits than its factorization.

4400221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400020132.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4400221331 is about 66334.1641313132. The cubic root of 4400221331 is about 1638.6700166794.

Adding to 4400221331 its reverse (1331220044), we get a palindrome (5731441375).

The spelling of 4400221331 in words is "four billion, four hundred million, two hundred twenty-one thousand, three hundred thirty-one".