111225312011 has 8 divisors (see below), whose sum is σ = 121596531264. Its totient is φ = 100897397320.

The previous prime is 111225312001. The next prime is 111225312071. The reversal of 111225312011 is 110213522111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111225312011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111225312001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10820765 + ... + 10831038.

It is an arithmetic number, because the mean of its divisors is an integer number (15199566408).

Almost surely, 2^111225312011 is an apocalyptic number.

111225312011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111225312011 is a deficient number, since it is larger than the sum of its proper divisors (10371219253).

111225312011 is a wasteful number, since it uses less digits than its factorization.

111225312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21652281.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 111225312011 its reverse (110213522111), we get a palindrome (221438834122).

The spelling of 111225312011 in words is "one hundred eleven billion, two hundred twenty-five million, three hundred twelve thousand, eleven".