122222332321 has 4 divisors (see below), whose sum is σ = 122223032512. Its totient is φ = 122221632132.

The previous prime is 122222332291. The next prime is 122222332333. The reversal of 122222332321 is 123233222221.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 123233222221 = 463 ⋅266162467.

It is a cyclic number.

It is not a de Polignac number, because 122222332321 - 2¹¹ = 122222330273 is a prime.

It is a super-2 number, since 2×122222332321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122222335321) 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, 147220 + ... + 515866.

It is an arithmetic number, because the mean of its divisors is an integer number (30555758128).

Almost surely, 2^122222332321 is an apocalyptic number.

It is an amenable number.

122222332321 is a deficient number, since it is larger than the sum of its proper divisors (700191).

122222332321 is an equidigital number, since it uses as much as digits as its factorization.

122222332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700190.

The product of its digits is 3456, while the sum is 25.

Adding to 122222332321 its reverse (123233222221), we get a palindrome (245455554542).

The spelling of 122222332321 in words is "one hundred twenty-two billion, two hundred twenty-two million, three hundred thirty-two thousand, three hundred twenty-one".