1002002110101 has 10 divisors (see below), whose sum is σ = 1496817967062. Its totient is φ = 668001406680.

The previous prime is 1002002110099. The next prime is 1002002110111. The reversal of 1002002110101 is 1010112002001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 597822776100 + 404179334001 = 773190^2 + 635751^2 .

It is not a de Polignac number, because 1002002110101 - 2¹ = 1002002110099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002002110111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6185198130 + ... + 6185198291.

Almost surely, 2^{1002002110101} is an apocalyptic number.

It is an amenable number.

1002002110101 is a deficient number, since it is larger than the sum of its proper divisors (494815856961).

1002002110101 is an equidigital number, since it uses as much as digits as its factorization.

1002002110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370396433 (or 12370396424 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1002002110101 its reverse (1010112002001), we get a palindrome (2012114112102).

The spelling of 1002002110101 in words is "one trillion, two billion, two million, one hundred ten thousand, one hundred one".