11055101105021 has 2 divisors, whose sum is σ = 11055101105022. Its totient is φ = 11055101105020.

The previous prime is 11055101104951. The next prime is 11055101105023. The reversal of 11055101105021 is 12050110155011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8855177335225 + 2199923769796 = 2975765^2 + 1483214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11055101105021 is a prime.

Together with 11055101105023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11055101105023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5527550552510 + 5527550552511.

It is an arithmetic number, because the mean of its divisors is an integer number (5527550552511).

Almost surely, 2^{11055101105021} is an apocalyptic number.

It is an amenable number.

11055101105021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11055101105021 is an equidigital number, since it uses as much as digits as its factorization.

11055101105021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250, while the sum is 23.

The spelling of 11055101105021 in words is "eleven trillion, fifty-five billion, one hundred one million, one hundred five thousand, twenty-one".