111010111200000 has 1080 divisors, whose sum is σ = 421558030965456. Its totient is φ = 29043256320000.

The previous prime is 111010111199983. The next prime is 111010111200007. The reversal of 111010111200000 is 2111010111.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111010111200007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3434383839 + ... + 3434416161.

Almost surely, 2^{111010111200000} is an apocalyptic number.

111010111200000 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 111010111200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210779015482728).

111010111200000 is an abundant number, since it is smaller than the sum of its proper divisors (310547919765456).

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

111010111200000 is an frugal number, since it uses more digits than its factorization.

111010111200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32429 (or 32386 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111010111200000 its reverse (2111010111), we get a palindrome (111012222210111).

The spelling of 111010111200000 in words is "one hundred eleven trillion, ten billion, one hundred eleven million, two hundred thousand".