22011223211 has 4 divisors (see below), whose sum is σ = 22019895000. Its totient is φ = 22002551424.

The previous prime is 22011223193. The next prime is 22011223217. The reversal of 22011223211 is 11232211022.

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

It is a cyclic number.

It is not a de Polignac number, because 22011223211 - 2¹⁴ = 22011206827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011223211.

It is not an unprimeable number, because it can be changed into a prime (22011223217) 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, 4332086 + ... + 4337163.

It is an arithmetic number, because the mean of its divisors is an integer number (5504973750).

Almost surely, 2^22011223211 is an apocalyptic number.

22011223211 is a deficient number, since it is larger than the sum of its proper divisors (8671789).

22011223211 is an equidigital number, since it uses as much as digits as its factorization.

22011223211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671788.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22011223211 its reverse (11232211022), we get a palindrome (33243434233).

The spelling of 22011223211 in words is "twenty-two billion, eleven million, two hundred twenty-three thousand, two hundred eleven".