11102212100081 has 2 divisors, whose sum is σ = 11102212100082. Its totient is φ = 11102212100080.

The previous prime is 11102212100009. The next prime is 11102212100101. The reversal of 11102212100081 is 18000121220111.

It is a happy number.

It is an a-pointer prime, because the next prime (11102212100101) can be obtained adding 11102212100081 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8951369869456 + 2150842230625 = 2991884^2 + 1466575^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102212100081 - 2³⁴ = 11085032230897 is a prime.

It is a super-2 number, since 2×11102212100081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11102212109081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551106050040 + 5551106050041.

It is an arithmetic number, because the mean of its divisors is an integer number (5551106050041).

Almost surely, 2^{11102212100081} is an apocalyptic number.

It is an amenable number.

11102212100081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102212100081 is an equidigital number, since it uses as much as digits as its factorization.

11102212100081 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 20.

Adding to 11102212100081 its reverse (18000121220111), we get a palindrome (29102333320192).

The spelling of 11102212100081 in words is "eleven trillion, one hundred two billion, two hundred twelve million, one hundred thousand, eighty-one".