22243021211 has 2 divisors, whose sum is σ = 22243021212. Its totient is φ = 22243021210.

The previous prime is 22243021193. The next prime is 22243021231. The reversal of 22243021211 is 11212034222.

It is an a-pointer prime, because the next prime (22243021231) can be obtained adding 22243021211 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22243021211 - 2³⁴ = 5063152027 is a prime.

It is not a weakly prime, because it can be changed into another prime (22243021231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11121510605 + 11121510606.

It is an arithmetic number, because the mean of its divisors is an integer number (11121510606).

Almost surely, 2^22243021211 is an apocalyptic number.

22243021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22243021211 is an equidigital number, since it uses as much as digits as its factorization.

22243021211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22243021211 its reverse (11212034222), we get a palindrome (33455055433).

The spelling of 22243021211 in words is "twenty-two billion, two hundred forty-three million, twenty-one thousand, two hundred eleven".