20112011112 has 32 divisors (see below), whose sum is σ = 51901966080. Its totient is φ = 6487745280.

The previous prime is 20112011107. The next prime is 20112011149. The reversal of 20112011112 is 21111021102.

It is a super-2 number, since 2×20112011112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 7 ways as a sum of consecutive naturals, for example, 13515393 + ... + 13516880.

It is an arithmetic number, because the mean of its divisors is an integer number (1621936440).

Almost surely, 2^20112011112 is an apocalyptic number.

It is an amenable number.

20112011112 is an abundant number, since it is smaller than the sum of its proper divisors (31789954968).

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

20112011112 is a wasteful number, since it uses less digits than its factorization.

20112011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27032313 (or 27032309 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20112011112 its reverse (21111021102), we get a palindrome (41223032214).

The spelling of 20112011112 in words is "twenty billion, one hundred twelve million, eleven thousand, one hundred twelve".