111112012011204 has 144 divisors (see below), whose sum is σ = 291868630470144. Its totient is φ = 35615783232000.

The previous prime is 111112012011193. The next prime is 111112012011239. The reversal of 111112012011204 is 402110210211111.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 31572787 + ... + 34915109.

It is an arithmetic number, because the mean of its divisors is an integer number (2026865489376).

Almost surely, 2^{111112012011204} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112012011204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145934315235072).

111112012011204 is an abundant number, since it is smaller than the sum of its proper divisors (180756618458940).

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

111112012011204 is a wasteful number, since it uses less digits than its factorization.

111112012011204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342698 (or 3342693 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111112012011204 its reverse (402110210211111), we get a palindrome (513222222222315).

The spelling of 111112012011204 in words is "one hundred eleven trillion, one hundred twelve billion, twelve million, eleven thousand, two hundred four".