111201202120120 has 128 divisors (see below), whose sum is σ = 287925639091200. Its totient is φ = 37862318592000.

The previous prime is 111201202120097. The next prime is 111201202120201. The reversal of 111201202120120 is 21021202102111.

It is a junction number, because it is equal to n+sod(n) for n = 111201202120094 and 111201202120103.

It is a congruent number.

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, 141711811 + ... + 142494349.

It is an arithmetic number, because the mean of its divisors is an integer number (2249419055400).

Almost surely, 2^{111201202120120} is an apocalyptic number.

111201202120120 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 111201202120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143962819545600).

111201202120120 is an abundant number, since it is smaller than the sum of its proper divisors (176724436971080).

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

111201202120120 is a wasteful number, since it uses less digits than its factorization.

111201202120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786069 (or 786065 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111201202120120 its reverse (21021202102111), we get a palindrome (132222404222231).

The spelling of 111201202120120 in words is "one hundred eleven trillion, two hundred one billion, two hundred two million, one hundred twenty thousand, one hundred twenty".