321220121022093 has 32 divisors (see below), whose sum is σ = 448045581517312. Its totient is φ = 204500632089600.

The previous prime is 321220121022037. The next prime is 321220121022169. The reversal of 321220121022093 is 390220121022123.

It is not a de Polignac number, because 321220121022093 - 2⁶ = 321220121022029 is a prime.

It is a super-2 number, since 2×321220121022093² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 321220121022093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321220121022793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48096748 + ... + 54366693.

It is an arithmetic number, because the mean of its divisors is an integer number (14001424422416).

Almost surely, 2^{321220121022093} is an apocalyptic number.

It is an amenable number.

321220121022093 is a deficient number, since it is larger than the sum of its proper divisors (126825460495219).

321220121022093 is a wasteful number, since it uses less digits than its factorization.

321220121022093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102464005.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 321220121022093 its sum of digits (30), we get a palindrome (321220121022123).

The spelling of 321220121022093 in words is "three hundred twenty-one trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, ninety-three".