1002010201002 has 64 divisors (see below), whose sum is σ = 2282357468160. Its totient is φ = 325679668272.

The previous prime is 1002010200977. The next prime is 1002010201067. The reversal of 1002010201002 is 2001020102001.

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 31 ways as a sum of consecutive naturals, for example, 995443 + ... + 1730585.

It is an arithmetic number, because the mean of its divisors is an integer number (35661835440).

Almost surely, 2^{1002010201002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002010201002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1141178734080).

1002010201002 is an abundant number, since it is smaller than the sum of its proper divisors (1280347267158).

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

1002010201002 is a wasteful number, since it uses less digits than its factorization.

1002010201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735784 (or 735778 counting only the distinct ones).

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

Adding to 1002010201002 its reverse (2001020102001), we get a palindrome (3003030303003).

Subtracting 1002010201002 from its reverse (2001020102001), we obtain a palindrome (999009900999).

The spelling of 1002010201002 in words is "one trillion, two billion, ten million, two hundred one thousand, two".