111122200000 has 1008 divisors, whose sum is σ = 366450920640. Its totient is φ = 33116160000.

The previous prime is 111122199889. The next prime is 111122200019. The reversal of 111122200000 is 2221111.

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

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 111122200000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3831799986 + ... + 3831800014.

It is an arithmetic number, because the mean of its divisors is an integer number (363542580).

Almost surely, 2^111122200000 is an apocalyptic number.

111122200000 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 111122200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183225460320).

111122200000 is an abundant number, since it is smaller than the sum of its proper divisors (255328720640).

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

111122200000 is an equidigital number, since it uses as much as digits as its factorization.

111122200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 83 counting only the distinct ones).

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

Adding to 111122200000 its reverse (2221111), we get a palindrome (111124421111).

The spelling of 111122200000 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred thousand".