120011112 has 128 divisors (see below), whose sum is σ = 364224000. Its totient is φ = 36391680.

The previous prime is 120011057. The next prime is 120011119. The reversal of 120011112 is 211110021.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 120011094 and 120011103.

It is not an unprimeable number, because it can be changed into a prime (120011119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221562 + ... + 222102.

It is an arithmetic number, because the mean of its divisors is an integer number (2845500).

Almost surely, 2^120011112 is an apocalyptic number.

120011112 is a gapful number since it is divisible by the number (12) 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 120011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182112000).

120011112 is an abundant number, since it is smaller than the sum of its proper divisors (244212888).

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

120011112 is a wasteful number, since it uses less digits than its factorization.

120011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 638 counting only the distinct ones).

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

The square root of 120011112 is about 10954.9583294506. The cubic root of 120011112 is about 493.2576391454.

Adding to 120011112 its reverse (211110021), we get a palindrome (331121133).

The spelling of 120011112 in words is "one hundred twenty million, eleven thousand, one hundred twelve".