2102001000012 has 18 divisors (see below), whose sum is σ = 5313391416788. Its totient is φ = 700666999992.

The previous prime is 2102000999971. The next prime is 2102001000037. The reversal of 2102001000012 is 2100001002012.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a junction number, because it is equal to n+sod(n) for n = 2102000999958 and 2102001000003.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29194458298 + ... + 29194458369.

Almost surely, 2^{2102001000012} is an apocalyptic number.

It is an amenable number.

2102001000012 is an abundant number, since it is smaller than the sum of its proper divisors (3211390416776).

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

2102001000012 is a wasteful number, since it uses less digits than its factorization.

2102001000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58388916677 (or 58388916672 counting only the distinct ones).

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

Adding to 2102001000012 its reverse (2100001002012), we get a palindrome (4202002002024).

The spelling of 2102001000012 in words is "two trillion, one hundred two billion, one million, twelve", and thus it is an aban number.