22212223321 has 4 divisors (see below), whose sum is σ = 22441215412. Its totient is φ = 21983231232.

The previous prime is 22212223279. The next prime is 22212223339. The reversal of 22212223321 is 12332221222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11823517696 + 10388705625 = 108736^2 + 101925^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212223321 - 2¹⁷ = 22212092249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212223292 and 22212223301.

It is not an unprimeable number, because it can be changed into a prime (22212223351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114495900 + ... + 114496093.

It is an arithmetic number, because the mean of its divisors is an integer number (5610303853).

Almost surely, 2^22212223321 is an apocalyptic number.

It is an amenable number.

22212223321 is a deficient number, since it is larger than the sum of its proper divisors (228992091).

22212223321 is an equidigital number, since it uses as much as digits as its factorization.

22212223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228992090.

The product of its digits is 1152, while the sum is 22.

Adding to 22212223321 its reverse (12332221222), we get a palindrome (34544444543).

The spelling of 22212223321 in words is "twenty-two billion, two hundred twelve million, two hundred twenty-three thousand, three hundred twenty-one".