1010020002209 has 4 divisors (see below), whose sum is σ = 1010442077316. Its totient is φ = 1009597927104.

The previous prime is 1010020002203. The next prime is 1010020002221. The reversal of 1010020002209 is 9022000200101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 408352950625 + 601667051584 = 639025^2 + 775672^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010020002209 - 2²⁰ = 1010018953633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1010020002203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211033964 + ... + 211038749.

It is an arithmetic number, because the mean of its divisors is an integer number (252610519329).

Almost surely, 2^{1010020002209} is an apocalyptic number.

It is an amenable number.

1010020002209 is a deficient number, since it is larger than the sum of its proper divisors (422075107).

1010020002209 is an equidigital number, since it uses as much as digits as its factorization.

1010020002209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422075106.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 1010020002209 in words is "one trillion, ten billion, twenty million, two thousand, two hundred nine".