111102012000 has 432 divisors, whose sum is σ = 458684003232. Its totient is φ = 25394342400.

The previous prime is 111102011983. The next prime is 111102012017. The reversal of 111102012000 is 210201111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111102011983) and next prime (111102012017).

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1732509 + ... + 1795491.

It is an arithmetic number, because the mean of its divisors is an integer number (1061768526).

Almost surely, 2^111102012000 is an apocalyptic number.

111102012000 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 111102012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229342001616).

111102012000 is an abundant number, since it is smaller than the sum of its proper divisors (347581991232).

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

111102012000 is a wasteful number, since it uses less digits than its factorization.

111102012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63028 (or 63000 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111102012000 its reverse (210201111), we get a palindrome (111312213111).

The spelling of 111102012000 in words is "one hundred eleven billion, one hundred two million, twelve thousand".