22123411021 has 2 divisors, whose sum is σ = 22123411022. Its totient is φ = 22123411020.

The previous prime is 22123410961. The next prime is 22123411027. The reversal of 22123411021 is 12011432122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20108658025 + 2014752996 = 141805^2 + 44886^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123411021 - 2¹⁹ = 22122886733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22123411021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22123411027) 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 as a sum of consecutive naturals, namely, 11061705510 + 11061705511.

It is an arithmetic number, because the mean of its divisors is an integer number (11061705511).

Almost surely, 2^22123411021 is an apocalyptic number.

It is an amenable number.

22123411021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123411021 is an equidigital number, since it uses as much as digits as its factorization.

22123411021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22123411021 its reverse (12011432122), we get a palindrome (34134843143).

The spelling of 22123411021 in words is "twenty-two billion, one hundred twenty-three million, four hundred eleven thousand, twenty-one".