1002000020002 has 16 divisors (see below), whose sum is σ = 1597465546560. Its totient is φ = 470023512912.

The previous prime is 1002000019997. The next prime is 1002000020123. The reversal of 1002000020002 is 2000200002001.

It is a happy number.

1002000020002 is a modest number, since divided by 20002 gives 10020 as remainder.

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, 127998133 + ... + 128005960.

It is an arithmetic number, because the mean of its divisors is an integer number (99841596660).

Almost surely, 2^{1002000020002} is an apocalyptic number.

1002000020002 is a deficient number, since it is larger than the sum of its proper divisors (595465526558).

1002000020002 is a wasteful number, since it uses less digits than its factorization.

1002000020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256004217.

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 1002000020002 its reverse (2000200002001), we get a palindrome (3002200022003).

The spelling of 1002000020002 in words is "one trillion, two billion, twenty thousand, two".