22111302013 has 2 divisors, whose sum is σ = 22111302014. Its totient is φ = 22111302012.

The previous prime is 22111301963. The next prime is 22111302043. The reversal of 22111302013 is 31020311122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21749465529 + 361836484 = 147477^2 + 19022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111302013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111302043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055651006 + 11055651007.

It is an arithmetic number, because the mean of its divisors is an integer number (11055651007).

Almost surely, 2^22111302013 is an apocalyptic number.

It is an amenable number.

22111302013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111302013 is an equidigital number, since it uses as much as digits as its factorization.

22111302013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22111302013 its reverse (31020311122), we get a palindrome (53131613135).

The spelling of 22111302013 in words is "twenty-two billion, one hundred eleven million, three hundred two thousand, thirteen".