11012021199917 has 2 divisors, whose sum is σ = 11012021199918. Its totient is φ = 11012021199916.

The previous prime is 11012021199841. The next prime is 11012021200027. The reversal of 11012021199917 is 71999112021011.

11012021199917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10735543992196 + 276477207721 = 3276514^2 + 525811^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012021199917 - 2⁸ = 11012021199661 is a prime.

It is a super-2 number, since 2×11012021199917² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11012021109917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506010599958 + 5506010599959.

It is an arithmetic number, because the mean of its divisors is an integer number (5506010599959).

Almost surely, 2^{11012021199917} is an apocalyptic number.

It is an amenable number.

11012021199917 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012021199917 is an equidigital number, since it uses as much as digits as its factorization.

11012021199917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 44.

The spelling of 11012021199917 in words is "eleven trillion, twelve billion, twenty-one million, one hundred ninety-nine thousand, nine hundred seventeen".