20001101011112 has 16 divisors (see below), whose sum is σ = 40386838580340. Its totient is φ = 9231277389696.

The previous prime is 20001101011103. The next prime is 20001101011117. The reversal of 20001101011112 is 21111010110002.

It can be written as a sum of positive squares in 2 ways, for example, as 19757544942916 + 243556068196 = 4444946^2 + 493514^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20001101011093 and 20001101011102.

It is not an unprimeable number, because it can be changed into a prime (20001101011117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96159139373 + ... + 96159139580.

Almost surely, 2^{20001101011112} is an apocalyptic number.

It is an amenable number.

20001101011112 is an abundant number, since it is smaller than the sum of its proper divisors (20385737569228).

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

20001101011112 is a wasteful number, since it uses less digits than its factorization.

20001101011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192318278972 (or 192318278968 counting only the distinct ones).

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

Adding to 20001101011112 its reverse (21111010110002), we get a palindrome (41112111121114).

The spelling of 20001101011112 in words is "twenty trillion, one billion, one hundred one million, eleven thousand, one hundred twelve".