20112110120112 has 20 divisors (see below), whose sum is σ = 51956284477080. Its totient is φ = 6704036706688.

The previous prime is 20112110120093. The next prime is 20112110120147. The reversal of 20112110120112 is 21102101121102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20112110120091 and 20112110120100.

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, 209501147037 + ... + 209501147132.

It is an arithmetic number, because the mean of its divisors is an integer number (2597814223854).

Almost surely, 2^{20112110120112} is an apocalyptic number.

It is an amenable number.

20112110120112 is an abundant number, since it is smaller than the sum of its proper divisors (31844174356968).

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

20112110120112 is a wasteful number, since it uses less digits than its factorization.

20112110120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419002294180 (or 419002294174 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20112110120112 its reverse (21102101121102), we get a palindrome (41214211241214).

The spelling of 20112110120112 in words is "twenty trillion, one hundred twelve billion, one hundred ten million, one hundred twenty thousand, one hundred twelve".