120111120 has 160 divisors (see below), whose sum is σ = 438186240. Its totient is φ = 30136320.

The previous prime is 120111073. The next prime is 120111163. The reversal of 120111120 is 21111021.

It is a happy number.

It is a super-2 number, since 2×120111120² = 28853362295308800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 35085 + ... + 38355.

It is an arithmetic number, because the mean of its divisors is an integer number (2738664).

Almost surely, 2^120111120 is an apocalyptic number.

120111120 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 120111120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219093120).

120111120 is an abundant number, since it is smaller than the sum of its proper divisors (318075120).

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

120111120 is a wasteful number, since it uses less digits than its factorization.

120111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310 (or 3298 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 120111120 is about 10959.5218873818. The cubic root of 120111120 is about 493.3946153886.

Adding to 120111120 its reverse (21111021), we get a palindrome (141222141).

Subtracting from 120111120 its reverse (21111021), we obtain a palindrome (99000099).

It can be divided in two parts, 12011 and 1120, that added together give a palindrome (13131).

The spelling of 120111120 in words is "one hundred twenty million, one hundred eleven thousand, one hundred twenty".