1001001010002 has 32 divisors (see below), whose sum is σ = 2288246692992. Its totient is φ = 285969740544.

The previous prime is 1001001009961. The next prime is 1001001010007. The reversal of 1001001010002 is 2000101001001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (1001001010007) 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 in 15 ways as a sum of consecutive naturals, for example, 873463 + ... + 1662810.

It is an arithmetic number, because the mean of its divisors is an integer number (71507709156).

Almost surely, 2^{1001001010002} is an apocalyptic number.

1001001010002 is an abundant number, since it is smaller than the sum of its proper divisors (1287245682990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001001010002 is a wasteful number, since it uses less digits than its factorization.

1001001010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545682.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 1001001010002 its reverse (2000101001001), we get a palindrome (3001102011003).

Subtracting 1001001010002 from its reverse (2000101001001), we obtain a palindrome (999099990999).

The spelling of 1001001010002 in words is "one trillion, one billion, one million, ten thousand, two".