111100220000 has 480 divisors, whose sum is σ = 358796148480. Its totient is φ = 32797440000.

The previous prime is 111100219987. The next prime is 111100220029. The reversal of 111100220000 is 22001111.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 111100220000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 29258102 + ... + 29261898.

It is an arithmetic number, because the mean of its divisors is an integer number (747491976).

Almost surely, 2^111100220000 is an apocalyptic number.

111100220000 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 111100220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179398074240).

111100220000 is an abundant number, since it is smaller than the sum of its proper divisors (247695928480).

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

111100220000 is a wasteful number, since it uses less digits than its factorization.

111100220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3841 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 111100220000 its reverse (22001111), we get a palindrome (111122221111).

It can be divided in two parts, 11 and 1100220000, that added together give a palindrome (1100220011).

The spelling of 111100220000 in words is "one hundred eleven billion, one hundred million, two hundred twenty thousand".