111122112222011 has 8 divisors (see below), whose sum is σ = 122931504430848. Its totient is φ = 99597283681000.

The previous prime is 111122112221993. The next prime is 111122112222029. The reversal of 111122112222011 is 110222211221111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111122112221993) and next prime (111122112222029).

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-111122112222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111122112222211) 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, 71140916135 + ... + 71140917696.

It is an arithmetic number, because the mean of its divisors is an integer number (15366438053856).

Almost surely, 2^{111122112222011} is an apocalyptic number.

111122112222011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111122112222011 is a deficient number, since it is larger than the sum of its proper divisors (11809392208837).

111122112222011 is a wasteful number, since it uses less digits than its factorization.

111122112222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142281833913.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 111122112222011 its reverse (110222211221111), we get a palindrome (221344323443122).

The spelling of 111122112222011 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twenty-two thousand, eleven".