111200220120 has 256 divisors, whose sum is σ = 367475097600. Its totient is φ = 26696240640.

The previous prime is 111200220091. The next prime is 111200220127. The reversal of 111200220120 is 21022002111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111200220096 and 111200220105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200220127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66866409 + ... + 66868071.

It is an arithmetic number, because the mean of its divisors is an integer number (1435449600).

Almost surely, 2^111200220120 is an apocalyptic number.

111200220120 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 111200220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183737548800).

111200220120 is an abundant number, since it is smaller than the sum of its proper divisors (256274877480).

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

111200220120 is a wasteful number, since it uses less digits than its factorization.

111200220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111200220120 its reverse (21022002111), we get a palindrome (132222222231).

The spelling of 111200220120 in words is "one hundred eleven billion, two hundred million, two hundred twenty thousand, one hundred twenty".