1002001000012 has 24 divisors (see below), whose sum is σ = 1765402227680. Its totient is φ = 497601446400.

The previous prime is 1002000999973. The next prime is 1002001000027. The reversal of 1002001000012 is 2100001002001.

It is a junction number, because it is equal to n+sod(n) for n = 1002000999959 and 1002001000004.

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, 3659164 + ... + 3923452.

Almost surely, 2^{1002001000012} is an apocalyptic number.

It is an amenable number.

1002001000012 is a deficient number, since it is larger than the sum of its proper divisors (763401227668).

1002001000012 is a wasteful number, since it uses less digits than its factorization.

1002001000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270721 (or 270719 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1002001000012 its reverse (2100001002001), we get a palindrome (3102002002013).

The spelling of 1002001000012 in words is "one trillion, two billion, one million, twelve", and thus it is an aban number and an uban number.