1101220200989 has 2 divisors, whose sum is σ = 1101220200990. Its totient is φ = 1101220200988.

The previous prime is 1101220200937. The next prime is 1101220201061. The reversal of 1101220200989 is 9890020221011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 702718388089 + 398501812900 = 838283^2 + 631270^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101220200989 - 2²⁰ = 1101219152413 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101220200089) 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, 550610100494 + 550610100495.

It is an arithmetic number, because the mean of its divisors is an integer number (550610100495).

Almost surely, 2^{1101220200989} is an apocalyptic number.

It is an amenable number.

1101220200989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101220200989 is an equidigital number, since it uses as much as digits as its factorization.

1101220200989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 1101220200989 in words is "one trillion, one hundred one billion, two hundred twenty million, two hundred thousand, nine hundred eighty-nine".