122321123221 has 4 divisors (see below), whose sum is σ = 133441225344. Its totient is φ = 111201021100.

The previous prime is 122321123209. The next prime is 122321123251.

122321123221 is nontrivially palindromic in base 10.

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 122321123221 - 2¹³ = 122321115029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122321123192 and 122321123201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122321123251) 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, 5560051045 + ... + 5560051066.

It is an arithmetic number, because the mean of its divisors is an integer number (33360306336).

Almost surely, 2^122321123221 is an apocalyptic number.

122321123221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122321123221 is a deficient number, since it is larger than the sum of its proper divisors (11120102123).

122321123221 is a wasteful number, since it uses less digits than its factorization.

122321123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120102122.

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

It can be divided in two parts, 122321 and 123221, that added together give a palindrome (245542).

The spelling of 122321123221 in words is "one hundred twenty-two billion, three hundred twenty-one million, one hundred twenty-three thousand, two hundred twenty-one".