20001100000012 has 12 divisors (see below), whose sum is σ = 35179599747600. Its totient is φ = 9949785786416.

The previous prime is 20001099999929. The next prime is 20001100000031. The reversal of 20001100000012 is 21000000110002.

It is a junction number, because it is equal to n+sod(n) for n = 20001099999950 and 20001100000004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12691052512 + ... + 12691054087.

It is an arithmetic number, because the mean of its divisors is an integer number (2931633312300).

Almost surely, 2^{20001100000012} is an apocalyptic number.

It is an amenable number.

20001100000012 is a deficient number, since it is larger than the sum of its proper divisors (15178499747588).

20001100000012 is a wasteful number, since it uses less digits than its factorization.

20001100000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25382106800 (or 25382106798 counting only the distinct ones).

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

Adding to 20001100000012 its reverse (21000000110002), we get a palindrome (41001100110014).

The spelling of 20001100000012 in words is "twenty trillion, one billion, one hundred million, twelve", and thus it is an aban number.