320212211321 has 8 divisors (see below), whose sum is σ = 322366029888. Its totient is φ = 318058830000.

The previous prime is 320212211261. The next prime is 320212211329. The reversal of 320212211321 is 123112212023.

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 320212211321 - 2¹⁴ = 320212194937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320212211293 and 320212211302.

It is not an unprimeable number, because it can be changed into a prime (320212211329) 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, 1433186 + ... + 1641476.

It is an arithmetic number, because the mean of its divisors is an integer number (40295753736).

Almost surely, 2^320212211321 is an apocalyptic number.

It is an amenable number.

320212211321 is a deficient number, since it is larger than the sum of its proper divisors (2153818567).

320212211321 is a wasteful number, since it uses less digits than its factorization.

320212211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218623.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 320212211321 its reverse (123112212023), we get a palindrome (443324423344).

The spelling of 320212211321 in words is "three hundred twenty billion, two hundred twelve million, two hundred eleven thousand, three hundred twenty-one".