111200122000 has 160 divisors (see below), whose sum is σ = 308765059200. Its totient is φ = 38308032000.

The previous prime is 111200121947. The next prime is 111200122001. The reversal of 111200122000 is 221002111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (111200122001) 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, 284986 + ... + 551014.

It is an arithmetic number, because the mean of its divisors is an integer number (1929781620).

Almost surely, 2^111200122000 is an apocalyptic number.

111200122000 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 111200122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154382529600).

111200122000 is an abundant number, since it is smaller than the sum of its proper divisors (197564937200).

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

111200122000 is a wasteful number, since it uses less digits than its factorization.

111200122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266082 (or 266066 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 111200122000 its reverse (221002111), we get a palindrome (111421124111).

The spelling of 111200122000 in words is "one hundred eleven billion, two hundred million, one hundred twenty-two thousand".