1100221201109 has 2 divisors, whose sum is σ = 1100221201110. Its totient is φ = 1100221201108.

The previous prime is 1100221201099. The next prime is 1100221201127. The reversal of 1100221201109 is 9011021220011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 668342220484 + 431878980625 = 817522^2 + 657175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100221201109 - 2⁸ = 1100221200853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100221201309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550110600554 + 550110600555.

It is an arithmetic number, because the mean of its divisors is an integer number (550110600555).

Almost surely, 2^{1100221201109} is an apocalyptic number.

It is an amenable number.

1100221201109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100221201109 is an equidigital number, since it uses as much as digits as its factorization.

1100221201109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

It can be divided in two parts, 110022 and 1201109, that added together give a palindrome (1311131).

The spelling of 1100221201109 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred one thousand, one hundred nine".