20112020112 has 80 divisors (see below), whose sum is σ = 52601008320. Its totient is φ = 6621120000.

The previous prime is 20112020083. The next prime is 20112020129. The reversal of 20112020112 is 21102021102.

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

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, 2026362 + ... + 2036262.

It is an arithmetic number, because the mean of its divisors is an integer number (657512604).

Almost surely, 2^20112020112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26300504160).

20112020112 is an abundant number, since it is smaller than the sum of its proper divisors (32488988208).

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

20112020112 is a wasteful number, since it uses less digits than its factorization.

20112020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432 (or 10426 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20112020112 its reverse (21102021102), we get a palindrome (41214041214).

The spelling of 20112020112 in words is "twenty billion, one hundred twelve million, twenty thousand, one hundred twelve".