11102120200081 has 2 divisors, whose sum is σ = 11102120200082. Its totient is φ = 11102120200080.

The previous prime is 11102120200043. The next prime is 11102120200097. The reversal of 11102120200081 is 18000202120111.

11102120200081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6532854843025 + 4569265357056 = 2555945^2 + 2137584^2 .

It is an emirp because it is prime and its reverse (18000202120111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11102120200081 - 2¹³ = 11102120191889 is a prime.

It is a super-2 number, since 2×11102120200081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11102120200021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551060100040 + 5551060100041.

It is an arithmetic number, because the mean of its divisors is an integer number (5551060100041).

Almost surely, 2^{11102120200081} is an apocalyptic number.

It is an amenable number.

11102120200081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102120200081 is an equidigital number, since it uses as much as digits as its factorization.

11102120200081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11102120200081 its reverse (18000202120111), we get a palindrome (29102322320192).

The spelling of 11102120200081 in words is "eleven trillion, one hundred two billion, one hundred twenty million, two hundred thousand, eighty-one".