4320221110321 has 4 divisors (see below), whose sum is σ = 4320253094500. Its totient is φ = 4320189126144.

The previous prime is 4320221110319. The next prime is 4320221110357. The reversal of 4320221110321 is 1230111220234.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4252107940096 + 68113170225 = 2062064^2 + 260985^2 .

It is a cyclic number.

It is not a de Polignac number, because 4320221110321 - 2¹ = 4320221110319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4320221110292 and 4320221110301.

It is not an unprimeable number, because it can be changed into a prime (4320221111321) 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, 15788616 + ... + 16059913.

It is an arithmetic number, because the mean of its divisors is an integer number (1080063273625).

Almost surely, 2^{4320221110321} is an apocalyptic number.

It is an amenable number.

4320221110321 is a deficient number, since it is larger than the sum of its proper divisors (31984179).

4320221110321 is a wasteful number, since it uses less digits than its factorization.

4320221110321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31984178.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 4320221110321 its reverse (1230111220234), we get a palindrome (5550332330555).

The spelling of 4320221110321 in words is "four trillion, three hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, three hundred twenty-one".