321222020222122 has 4 divisors (see below), whose sum is σ = 481833030333186. Its totient is φ = 160611010111060.

The previous prime is 321222020222057. The next prime is 321222020222123. The reversal of 321222020222122 is 221222020222123.

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

It can be written as a sum of positive squares in only one way, i.e., 316406931684561 + 4815088537561 = 17787831^2 + 2194331^2 .

It is not an unprimeable number, because it can be changed into a prime (321222020222123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80305505055529 + ... + 80305505055532.

Almost surely, 2^{321222020222122} is an apocalyptic number.

321222020222122 is a deficient number, since it is larger than the sum of its proper divisors (160611010111064).

321222020222122 is a wasteful number, since it uses less digits than its factorization.

321222020222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160611010111063.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 321222020222122 its reverse (221222020222123), we get a palindrome (542444040444245).

Subtracting from 321222020222122 its reverse (221222020222123), we obtain a palindrome (99999999999999).

The spelling of 321222020222122 in words is "three hundred twenty-one trillion, two hundred twenty-two billion, twenty million, two hundred twenty-two thousand, one hundred twenty-two".