22211311313 has 2 divisors, whose sum is σ = 22211311314. Its totient is φ = 22211311312.

The previous prime is 22211311279. The next prime is 22211311349. The reversal of 22211311313 is 31311311222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18634434064 + 3576877249 = 136508^2 + 59807^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211311313 - 2⁶ = 22211311249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22211310313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105655656 + 11105655657.

It is an arithmetic number, because the mean of its divisors is an integer number (11105655657).

Almost surely, 2^22211311313 is an apocalyptic number.

It is an amenable number.

22211311313 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211311313 is an equidigital number, since it uses as much as digits as its factorization.

22211311313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

Adding to 22211311313 its reverse (31311311222), we get a palindrome (53522622535).

Subtracting 22211311313 from its reverse (31311311222), we obtain a palindrome (9099999909).

The spelling of 22211311313 in words is "twenty-two billion, two hundred eleven million, three hundred eleven thousand, three hundred thirteen".