320021220000001 has 8 divisors (see below), whose sum is σ = 349782091206464. Its totient is φ = 290995185119760.

The previous prime is 320021219999963. The next prime is 320021220000007. The reversal of 320021220000001 is 100000022120023.

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 320021220000001 - 2⁴¹ = 317822196744449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320021220000007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183709080645 + ... + 183709082386.

It is an arithmetic number, because the mean of its divisors is an integer number (43722761400808).

Almost surely, 2^{320021220000001} is an apocalyptic number.

It is an amenable number.

320021220000001 is a deficient number, since it is larger than the sum of its proper divisors (29760871206463).

320021220000001 is a wasteful number, since it uses less digits than its factorization.

320021220000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367418163111.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 320021220000001 its reverse (100000022120023), we get a palindrome (420021242120024).

The spelling of 320021220000001 in words is "three hundred twenty trillion, twenty-one billion, two hundred twenty million, one", and thus it is an aban number.