1002100010002 has 24 divisors (see below), whose sum is σ = 1860195796416. Its totient is φ = 396435167856.

The previous prime is 1002100009997. The next prime is 1002100010039. The reversal of 1002100010002 is 2000100012001.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 211768558 + ... + 211773289.

It is an arithmetic number, because the mean of its divisors is an integer number (77508158184).

Almost surely, 2^{1002100010002} is an apocalyptic number.

1002100010002 is a deficient number, since it is larger than the sum of its proper divisors (858095786414).

1002100010002 is a wasteful number, since it uses less digits than its factorization.

1002100010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423541882 (or 423541869 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1002100010002 its reverse (2000100012001), we get a palindrome (3002200022003).

The spelling of 1002100010002 in words is "one trillion, two billion, one hundred million, ten thousand, two".