22211320321 has 4 divisors (see below), whose sum is σ = 23380337200. Its totient is φ = 21042303444.

The previous prime is 22211320291. The next prime is 22211320349. The reversal of 22211320321 is 12302311222.

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 22211320321 - 2⁵ = 22211320289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1169016859 = 22211320321 / (2 + 2 + 2 + 1 + 1 + 3 + 2 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211320121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584508411 + ... + 584508448.

It is an arithmetic number, because the mean of its divisors is an integer number (5845084300).

Almost surely, 2^22211320321 is an apocalyptic number.

It is an amenable number.

22211320321 is a deficient number, since it is larger than the sum of its proper divisors (1169016879).

22211320321 is a wasteful number, since it uses less digits than its factorization.

22211320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169016878.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22211320321 its reverse (12302311222), we get a palindrome (34513631543).

Subtracting from 22211320321 its reverse (12302311222), we obtain a palindrome (9909009099).

The spelling of 22211320321 in words is "twenty-two billion, two hundred eleven million, three hundred twenty thousand, three hundred twenty-one".