11010112212181 has 2 divisors, whose sum is σ = 11010112212182. Its totient is φ = 11010112212180.

The previous prime is 11010112212157. The next prime is 11010112212191. The reversal of 11010112212181 is 18121221101011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10162285611556 + 847826600625 = 3187834^2 + 920775^2 .

It is a cyclic number.

It is not a de Polignac number, because 11010112212181 - 2⁹ = 11010112211669 is a prime.

It is a super-2 number, since 2×11010112212181² (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 (11010112212191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505056106090 + 5505056106091.

It is an arithmetic number, because the mean of its divisors is an integer number (5505056106091).

Almost surely, 2^{11010112212181} is an apocalyptic number.

It is an amenable number.

11010112212181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010112212181 is an equidigital number, since it uses as much as digits as its factorization.

11010112212181 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 22.

Adding to 11010112212181 its reverse (18121221101011), we get a palindrome (29131333313192).

The spelling of 11010112212181 in words is "eleven trillion, ten billion, one hundred twelve million, two hundred twelve thousand, one hundred eighty-one".