1002001000202 has 16 divisors (see below), whose sum is σ = 1593504607752. Its totient is φ = 470910251520.

The previous prime is 1002001000177. The next prime is 1002001000237. The reversal of 1002001000202 is 2020001002001.

It can be written as a sum of positive squares in 4 ways, for example, as 377709805561 + 624291194641 = 614581^2 + 790121^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1002001000202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19337213 + ... + 19388960.

Almost surely, 2^{1002001000202} is an apocalyptic number.

1002001000202 is a deficient number, since it is larger than the sum of its proper divisors (591503607550).

1002001000202 is a wasteful number, since it uses less digits than its factorization.

1002001000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38726953.

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

Adding to 1002001000202 its reverse (2020001002001), we get a palindrome (3022002002203).

The spelling of 1002001000202 in words is "one trillion, two billion, one million, two hundred two", and thus it is an aban number.