120111120020 has 12 divisors (see below), whose sum is σ = 252233352084. Its totient is φ = 48044448000.

The previous prime is 120111119971. The next prime is 120111120047. The reversal of 120111120020 is 20021111021.

It can be written as a sum of positive squares in 2 ways, for example, as 94137285124 + 25973834896 = 306818^2 + 161164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120111119983 and 120111120010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002777981 + ... + 3002778020.

It is an arithmetic number, because the mean of its divisors is an integer number (21019446007).

Almost surely, 2^120111120020 is an apocalyptic number.

120111120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111120020 is an abundant number, since it is smaller than the sum of its proper divisors (132122232064).

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

120111120020 is a wasteful number, since it uses less digits than its factorization.

120111120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005556010 (or 6005556008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120111120020 its reverse (20021111021), we get a palindrome (140132231041).

The spelling of 120111120020 in words is "one hundred twenty billion, one hundred eleven million, one hundred twenty thousand, twenty".