1101011102221 has 2 divisors, whose sum is σ = 1101011102222. Its totient is φ = 1101011102220.

The previous prime is 1101011102207. The next prime is 1101011102281. The reversal of 1101011102221 is 1222011101011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885831086596 + 215180015625 = 941186^2 + 463875^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101011102221 - 2³⁹ = 551255288333 is a prime.

It is a super-2 number, since 2×1101011102221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101011102281) 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, 550505551110 + 550505551111.

It is an arithmetic number, because the mean of its divisors is an integer number (550505551111).

Almost surely, 2^{1101011102221} is an apocalyptic number.

It is an amenable number.

1101011102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101011102221 is an equidigital number, since it uses as much as digits as its factorization.

1101011102221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1101011102221 its reverse (1222011101011), we get a palindrome (2323022203232).

The spelling of 1101011102221 in words is "one trillion, one hundred one billion, eleven million, one hundred two thousand, two hundred twenty-one".