4321433221 has 16 divisors (see below), whose sum is σ = 5056315264. Its totient is φ = 3616026624.

The previous prime is 4321433219. The next prime is 4321433239. The reversal of 4321433221 is 1223341234.

It is not a de Polignac number, because 4321433221 - 2¹ = 4321433219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321433261) 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, 1038481 + ... + 1042633.

It is an arithmetic number, because the mean of its divisors is an integer number (316019704).

Almost surely, 2^4321433221 is an apocalyptic number.

It is an amenable number.

4321433221 is a deficient number, since it is larger than the sum of its proper divisors (734882043).

4321433221 is a wasteful number, since it uses less digits than its factorization.

4321433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660.

The product of its digits is 3456, while the sum is 25.

The square root of 4321433221 is about 65737.6088780235. The cubic root of 4321433221 is about 1628.8306593173.

Adding to 4321433221 its reverse (1223341234), we get a palindrome (5544774455).

The spelling of 4321433221 in words is "four billion, three hundred twenty-one million, four hundred thirty-three thousand, two hundred twenty-one".