20001101211112 has 64 divisors (see below), whose sum is σ = 42880678041600. Its totient is φ = 8567666680320.

The previous prime is 20001101211109. The next prime is 20001101211163. The reversal of 20001101211112 is 21111210110002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20001101211092 and 20001101211101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1188340537 + ... + 1188357367.

It is an arithmetic number, because the mean of its divisors is an integer number (670010594400).

Almost surely, 2^{20001101211112} is an apocalyptic number.

It is an amenable number.

20001101211112 is an abundant number, since it is smaller than the sum of its proper divisors (22879576830488).

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

20001101211112 is a wasteful number, since it uses less digits than its factorization.

20001101211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26066 (or 26062 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20001101211112 its reverse (21111210110002), we get a palindrome (41112311321114).

The spelling of 20001101211112 in words is "twenty trillion, one billion, one hundred one million, two hundred eleven thousand, one hundred twelve".