322311131021221 has 4 divisors (see below), whose sum is σ = 339274874759200. Its totient is φ = 305347387283244.

The previous prime is 322311131021161. The next prime is 322311131021309. The reversal of 322311131021221 is 122120131113223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 322311131021221 - 2¹⁹ = 322311130496933 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 (322311131021021) 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, 8481871868961 + ... + 8481871868998.

It is an arithmetic number, because the mean of its divisors is an integer number (84818718689800).

Almost surely, 2^{322311131021221} is an apocalyptic number.

It is an amenable number.

322311131021221 is a deficient number, since it is larger than the sum of its proper divisors (16963743737979).

322311131021221 is a wasteful number, since it uses less digits than its factorization.

322311131021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16963743737978.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 322311131021221 its reverse (122120131113223), we get a palindrome (444431262134444).

The spelling of 322311131021221 in words is "three hundred twenty-two trillion, three hundred eleven billion, one hundred thirty-one million, twenty-one thousand, two hundred twenty-one".