120112111020 has 192 divisors, whose sum is σ = 370938839040. Its totient is φ = 28798406400.

The previous prime is 120112111019. The next prime is 120112111043. The reversal of 120112111020 is 20111211021.

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

It is a junction number, because it is equal to n+sod(n) for n = 120112110987 and 120112111005.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22562079 + ... + 22567401.

It is an arithmetic number, because the mean of its divisors is an integer number (1931973120).

Almost surely, 2^120112111020 is an apocalyptic number.

120112111020 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 120112111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185469419520).

120112111020 is an abundant number, since it is smaller than the sum of its proper divisors (250826728020).

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

120112111020 is a wasteful number, since it uses less digits than its factorization.

120112111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5716 (or 5714 counting only the distinct ones).

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

Adding to 120112111020 its reverse (20111211021), we get a palindrome (140223322041).

It can be divided in two parts, 120112 and 111020, that added together give a palindrome (231132).

The spelling of 120112111020 in words is "one hundred twenty billion, one hundred twelve million, one hundred eleven thousand, twenty".