321220121022122 has 16 divisors (see below), whose sum is σ = 550672668285120. Its totient is φ = 137663365233408.

The previous prime is 321220121022037. The next prime is 321220121022169. The reversal of 321220121022122 is 221220121022123.

It is a super-2 number, since 2×321220121022122² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 199245047 + ... + 200850762.

It is an arithmetic number, because the mean of its divisors is an integer number (34417041767820).

Almost surely, 2^{321220121022122} is an apocalyptic number.

321220121022122 is a deficient number, since it is larger than the sum of its proper divisors (229452547262998).

321220121022122 is a wasteful number, since it uses less digits than its factorization.

321220121022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400153165.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 321220121022122 its reverse (221220121022123), we get a palindrome (542440242044245).

Subtracting from 321220121022122 its reverse (221220121022123), we obtain a palindrome (99999999999999).

The spelling of 321220121022122 in words is "three hundred twenty-one trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, one hundred twenty-two".