122232121321 has 4 divisors (see below), whose sum is σ = 122252911444. Its totient is φ = 122211331200.

The previous prime is 122232121301. The next prime is 122232121343. The reversal of 122232121321 is 123121232221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123121232221 = 13 ⋅9470864017.

It can be written as a sum of positive squares in 2 ways, for example, as 60609023721 + 61623097600 = 246189^2 + 248240^2 .

It is a cyclic number.

It is not a de Polignac number, because 122232121321 - 2⁵ = 122232121289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122232121292 and 122232121301.

It is not an unprimeable number, because it can be changed into a prime (122232121301) 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, 10386240 + ... + 10398001.

It is an arithmetic number, because the mean of its divisors is an integer number (30563227861).

Almost surely, 2^122232121321 is an apocalyptic number.

It is an amenable number.

122232121321 is a deficient number, since it is larger than the sum of its proper divisors (20790123).

122232121321 is an equidigital number, since it uses as much as digits as its factorization.

122232121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20790122.

The product of its digits is 576, while the sum is 22.

Adding to 122232121321 its reverse (123121232221), we get a palindrome (245353353542).

The spelling of 122232121321 in words is "one hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-one thousand, three hundred twenty-one".