20111000121112 has 16 divisors (see below), whose sum is σ = 38224674888840. Its totient is φ = 9917753484096.

The previous prime is 20111000121109. The next prime is 20111000121133. The reversal of 20111000121112 is 21112100011102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20111000121092 and 20111000121101.

It is a congruent number.

It is an unprimeable number.

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, 17218321438 + ... + 17218322605.

Almost surely, 2^{20111000121112} is an apocalyptic number.

It is an amenable number.

20111000121112 is a deficient number, since it is larger than the sum of its proper divisors (18113674767728).

20111000121112 is a wasteful number, since it uses less digits than its factorization.

20111000121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34436644122 (or 34436644118 counting only the distinct ones).

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

Adding to 20111000121112 its reverse (21112100011102), we get a palindrome (41223100132214).

The spelling of 20111000121112 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-one thousand, one hundred twelve".