322231021331 has 4 divisors (see below), whose sum is σ = 322774413192. Its totient is φ = 321687629472.

The previous prime is 322231021313. The next prime is 322231021339. The reversal of 322231021331 is 133120132223.

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

It is a cyclic number.

It is not a de Polignac number, because 322231021331 - 2³⁰ = 321157279507 is a prime.

It is a super-2 number, since 2×322231021331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 322231021297 and 322231021306.

It is not an unprimeable number, because it can be changed into a prime (322231021339) 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, 271695041 + ... + 271696226.

It is an arithmetic number, because the mean of its divisors is an integer number (80693603298).

Almost surely, 2^322231021331 is an apocalyptic number.

322231021331 is a deficient number, since it is larger than the sum of its proper divisors (543391861).

322231021331 is an equidigital number, since it uses as much as digits as its factorization.

322231021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543391860.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 322231021331 its reverse (133120132223), we get a palindrome (455351153554).

The spelling of 322231021331 in words is "three hundred twenty-two billion, two hundred thirty-one million, twenty-one thousand, three hundred thirty-one".