112211221111 has 8 divisors (see below), whose sum is σ = 122463638784. Its totient is φ = 101967369720.

The previous prime is 112211221099. The next prime is 112211221151. The reversal of 112211221111 is 111122112211.

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

It is a cyclic number.

It is not a de Polignac number, because 112211221111 - 2¹⁷ = 112211090039 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112211221151) 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, 2114161 + ... + 2166586.

It is an arithmetic number, because the mean of its divisors is an integer number (15307954848).

Almost surely, 2^112211221111 is an apocalyptic number.

112211221111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

112211221111 is a deficient number, since it is larger than the sum of its proper divisors (10252417673).

112211221111 is a wasteful number, since it uses less digits than its factorization.

112211221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283141.

The product of its digits is 16, while the sum is 16.

Adding to 112211221111 its reverse (111122112211), we get a palindrome (223333333322).

It can be divided in two parts, 1122112211 and 11, that multiplied together give a palindrome (12343234321).

The spelling of 112211221111 in words is "one hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred eleven".