4224044430221 has 24 divisors (see below), whose sum is σ = 5306655822720. Its totient is φ = 3291203789280.

The previous prime is 4224044430217. The next prime is 4224044430247. The reversal of 4224044430221 is 1220344404224.

It is not a de Polignac number, because 4224044430221 - 2² = 4224044430217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224044330221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10928615 + ... + 11308523.

It is an arithmetic number, because the mean of its divisors is an integer number (221110659280).

Almost surely, 2^{4224044430221} is an apocalyptic number.

It is an amenable number.

4224044430221 is a deficient number, since it is larger than the sum of its proper divisors (1082611392499).

4224044430221 is a wasteful number, since it uses less digits than its factorization.

4224044430221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393065 (or 393054 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 4224044430221 its reverse (1220344404224), we get a palindrome (5444388834445).

The spelling of 4224044430221 in words is "four trillion, two hundred twenty-four billion, forty-four million, four hundred thirty thousand, two hundred twenty-one".