11021222200081 has 2 divisors, whose sum is σ = 11021222200082. Its totient is φ = 11021222200080.

The previous prime is 11021222200013. The next prime is 11021222200147. The reversal of 11021222200081 is 18000222212011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11018283584400 + 2938615681 = 3319380^2 + 54209^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021222200081 - 2⁹ = 11021222199569 is a prime.

It is a super-2 number, since 2×11021222200081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11021222200181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510611100040 + 5510611100041.

It is an arithmetic number, because the mean of its divisors is an integer number (5510611100041).

Almost surely, 2^{11021222200081} is an apocalyptic number.

It is an amenable number.

11021222200081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021222200081 is an equidigital number, since it uses as much as digits as its factorization.

11021222200081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 11021222200081 its reverse (18000222212011), we get a palindrome (29021444412092).

The spelling of 11021222200081 in words is "eleven trillion, twenty-one billion, two hundred twenty-two million, two hundred thousand, eighty-one".