1002011002002 has 48 divisors (see below), whose sum is σ = 2288052243360. Its totient is φ = 316041820416.

The previous prime is 1002011001989. The next prime is 1002011002061. The reversal of 1002011002002 is 2002001102001.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1488543 + ... + 2054210.

It is an arithmetic number, because the mean of its divisors is an integer number (47667755070).

Almost surely, 2^{1002011002002} is an apocalyptic number.

1002011002002 is an abundant number, since it is smaller than the sum of its proper divisors (1286041241358).

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

1002011002002 is a wasteful number, since it uses less digits than its factorization.

1002011002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543607 (or 3543604 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1002011002002 its reverse (2002001102001), we get a palindrome (3004012104003).

Subtracting 1002011002002 from its reverse (2002001102001), we obtain a palindrome (999990099999).

The spelling of 1002011002002 in words is "one trillion, two billion, eleven million, two thousand, two".