22012311043 has 2 divisors, whose sum is σ = 22012311044. Its totient is φ = 22012311042.

The previous prime is 22012310909. The next prime is 22012311047. The reversal of 22012311043 is 34011321022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22012311043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22012311043.

It is not a weakly prime, because it can be changed into another prime (22012311047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006155521 + 11006155522.

It is an arithmetic number, because the mean of its divisors is an integer number (11006155522).

Almost surely, 2^22012311043 is an apocalyptic number.

22012311043 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012311043 is an equidigital number, since it uses as much as digits as its factorization.

22012311043 is an odious number, because the sum of its binary digits is odd.

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

Adding to 22012311043 its reverse (34011321022), we get a palindrome (56023632065).

The spelling of 22012311043 in words is "twenty-two billion, twelve million, three hundred eleven thousand, forty-three".