4320401132221 has 8 divisors (see below), whose sum is σ = 4321469446200. Its totient is φ = 4319332942848.

The previous prime is 4320401132189. The next prime is 4320401132237. The reversal of 4320401132221 is 1222311040234.

It can be written as a sum of positive squares in 4 ways, for example, as 3371579026596 + 948822105625 = 1836186^2 + 974075^2 .

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 4320401132221 - 2⁵ = 4320401132189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320401132251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120337545 + ... + 120373441.

It is an arithmetic number, because the mean of its divisors is an integer number (540183680775).

Almost surely, 2^{4320401132221} is an apocalyptic number.

It is an amenable number.

4320401132221 is a deficient number, since it is larger than the sum of its proper divisors (1068313979).

4320401132221 is a wasteful number, since it uses less digits than its factorization.

4320401132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62303.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4320401132221 its reverse (1222311040234), we get a palindrome (5542712172455).

The spelling of 4320401132221 in words is "four trillion, three hundred twenty billion, four hundred one million, one hundred thirty-two thousand, two hundred twenty-one".