1001102120209 has 2 divisors, whose sum is σ = 1001102120210. Its totient is φ = 1001102120208.

The previous prime is 1001102120201. The next prime is 1001102120267. The reversal of 1001102120209 is 9020212011001.

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., 982923530625 + 18178589584 = 991425^2 + 134828^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001102120209 - 2³ = 1001102120201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001102120201) 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, 500551060104 + 500551060105.

It is an arithmetic number, because the mean of its divisors is an integer number (500551060105).

Almost surely, 2^{1001102120209} is an apocalyptic number.

It is an amenable number.

1001102120209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001102120209 is an equidigital number, since it uses as much as digits as its factorization.

1001102120209 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 19.

The spelling of 1001102120209 in words is "one trillion, one billion, one hundred two million, one hundred twenty thousand, two hundred nine".