20100100111112 has 64 divisors (see below), whose sum is σ = 45343398672000. Its totient is φ = 8160074044416.

The previous prime is 20100100111103. The next prime is 20100100111181. The reversal of 20100100111112 is 21111100100102.

It is a junction number, because it is equal to n+sod(n) for n = 20100100111093 and 20100100111102.

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 15 ways as a sum of consecutive naturals, for example, 9040064 + ... + 11041872.

It is an arithmetic number, because the mean of its divisors is an integer number (708490604250).

Almost surely, 2^{20100100111112} is an apocalyptic number.

It is an amenable number.

20100100111112 is an abundant number, since it is smaller than the sum of its proper divisors (25243298560888).

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

20100100111112 is a wasteful number, since it uses less digits than its factorization.

20100100111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011278 (or 2011274 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20100100111112 its reverse (21111100100102), we get a palindrome (41211200211214).

The spelling of 20100100111112 in words is "twenty trillion, one hundred billion, one hundred million, one hundred eleven thousand, one hundred twelve".