112111021220 has 48 divisors (see below), whose sum is σ = 256859116416. Its totient is φ = 40764000000.

The previous prime is 112111021147. The next prime is 112111021241. The reversal of 112111021220 is 22120111211.

It is a junction number, because it is equal to n+sod(n) for n = 112111021195 and 112111021204.

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 15 ways as a sum of consecutive naturals, for example, 4332320 + ... + 4358120.

It is an arithmetic number, because the mean of its divisors is an integer number (5351231592).

Almost surely, 2^112111021220 is an apocalyptic number.

112111021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112111021220 is an abundant number, since it is smaller than the sum of its proper divisors (144748095196).

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

112111021220 is a wasteful number, since it uses less digits than its factorization.

112111021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45572 (or 45570 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 112111021220 its reverse (22120111211), we get a palindrome (134231132431).

The spelling of 112111021220 in words is "one hundred twelve billion, one hundred eleven million, twenty-one thousand, two hundred twenty".