120111101100 has 360 divisors, whose sum is σ = 414826991040. Its totient is φ = 29975080320.

The previous prime is 120111101093. The next prime is 120111101141. The reversal of 120111101100 is 1101111021.

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 119 ways as a sum of consecutive naturals, for example, 12768999 + ... + 12778401.

Almost surely, 2^120111101100 is an apocalyptic number.

120111101100 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 120111101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207413495520).

120111101100 is an abundant number, since it is smaller than the sum of its proper divisors (294715889940).

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

120111101100 is a wasteful number, since it uses less digits than its factorization.

120111101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531 (or 9515 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 120111101100 its reverse (1101111021), we get a palindrome (121212212121).

It can be divided in two parts, 12011 and 1101100, that added together give a palindrome (1113111).

The spelling of 120111101100 in words is "one hundred twenty billion, one hundred eleven million, one hundred one thousand, one hundred".