22011122209913 has 2 divisors, whose sum is σ = 22011122209914. Its totient is φ = 22011122209912.

The previous prime is 22011122209897. The next prime is 22011122210039. The reversal of 22011122209913 is 31990222111022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15706066495744 + 6305055714169 = 3963088^2 + 2510987^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011122209913 - 2⁴ = 22011122209897 is a prime.

It is not a weakly prime, because it can be changed into another prime (22011122209313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005561104956 + 11005561104957.

It is an arithmetic number, because the mean of its divisors is an integer number (11005561104957).

Almost surely, 2^{22011122209913} is an apocalyptic number.

It is an amenable number.

22011122209913 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011122209913 is an equidigital number, since it uses as much as digits as its factorization.

22011122209913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 22011122209913 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, two hundred nine thousand, nine hundred thirteen".