20021120001112 has 16 divisors (see below), whose sum is σ = 38175864409800. Its totient is φ = 9840889491840.

The previous prime is 20021120001089. The next prime is 20021120001143. The reversal of 20021120001112 is 21110002112002.

It is a junction number, because it is equal to n+sod(n) for n = 20021120001092 and 20021120001101.

It is a congruent number.

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, 21208813089 + ... + 21208814032.

Almost surely, 2^{20021120001112} is an apocalyptic number.

It is an amenable number.

20021120001112 is a deficient number, since it is larger than the sum of its proper divisors (18154744408688).

20021120001112 is a wasteful number, since it uses less digits than its factorization.

20021120001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42417627186 (or 42417627182 counting only the distinct ones).

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

Adding to 20021120001112 its reverse (21110002112002), we get a palindrome (41131122113114).

The spelling of 20021120001112 in words is "twenty trillion, twenty-one billion, one hundred twenty million, one thousand, one hundred twelve".