320001123221 has 8 divisors (see below), whose sum is σ = 347837311584. Its totient is φ = 292625037360.

The previous prime is 320001123157. The next prime is 320001123223. The reversal of 320001123221 is 122321100023.

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 320001123221 - 2⁶ = 320001123157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320001123221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320001123223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115024175 + ... + 115026956.

It is an arithmetic number, because the mean of its divisors is an integer number (43479663948).

Almost surely, 2^320001123221 is an apocalyptic number.

It is an amenable number.

320001123221 is a deficient number, since it is larger than the sum of its proper divisors (27836188363).

320001123221 is a wasteful number, since it uses less digits than its factorization.

320001123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230051251.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 320001123221 its reverse (122321100023), we get a palindrome (442322223244).

The spelling of 320001123221 in words is "three hundred twenty billion, one million, one hundred twenty-three thousand, two hundred twenty-one".