20110102102012 has 12 divisors (see below), whose sum is σ = 37899807807736. Its totient is φ = 9281585585520.

The previous prime is 20110102101997. The next prime is 20110102102021. The reversal of 20110102102012 is 21020120101102.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20110102101983 and 20110102102001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193366366314 + ... + 193366366417.

Almost surely, 2^{20110102102012} is an apocalyptic number.

It is an amenable number.

20110102102012 is a deficient number, since it is larger than the sum of its proper divisors (17789705705724).

20110102102012 is a wasteful number, since it uses less digits than its factorization.

20110102102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386732732748 (or 386732732746 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20110102102012 its reverse (21020120101102), we get a palindrome (41130222203114).

The spelling of 20110102102012 in words is "twenty trillion, one hundred ten billion, one hundred two million, one hundred two thousand, twelve".