112100120020 has 96 divisors (see below), whose sum is σ = 278426937600. Its totient is φ = 37094421504.

The previous prime is 112100119981. The next prime is 112100120071. The reversal of 112100120020 is 20021001211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 112100119979 and 112100120006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16532991 + ... + 16539769.

It is an arithmetic number, because the mean of its divisors is an integer number (2900280600).

Almost surely, 2^112100120020 is an apocalyptic number.

112100120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112100120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139213468800).

112100120020 is an abundant number, since it is smaller than the sum of its proper divisors (166326817580).

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

112100120020 is a wasteful number, since it uses less digits than its factorization.

112100120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10897 (or 10895 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 112100120020 its reverse (20021001211), we get a palindrome (132121121231).

The spelling of 112100120020 in words is "one hundred twelve billion, one hundred million, one hundred twenty thousand, twenty".