20111204112 has 40 divisors (see below), whose sum is σ = 52579905504. Its totient is φ = 6622965504.

The previous prime is 20111204083. The next prime is 20111204123. The reversal of 20111204112 is 21140211102.

It is a junction number, because it is equal to n+sod(n) for n = 20111204091 and 20111204100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2520013 + ... + 2527980.

Almost surely, 2^20111204112 is an apocalyptic number.

It is an amenable number.

20111204112 is an abundant number, since it is smaller than the sum of its proper divisors (32468701392).

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

20111204112 is a wasteful number, since it uses less digits than its factorization.

20111204112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048087 (or 5048081 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20111204112 its reverse (21140211102), we get a palindrome (41251415214).

The spelling of 20111204112 in words is "twenty billion, one hundred eleven million, two hundred four thousand, one hundred twelve".