112211222111 has 4 divisors (see below), whose sum is σ = 112214450424. Its totient is φ = 112207993800.

The previous prime is 112211222093. The next prime is 112211222153. The reversal of 112211222111 is 111222112211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112211222111 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 112211222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112211222191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561445 + ... + 1631726.

It is an arithmetic number, because the mean of its divisors is an integer number (28053612606).

Almost surely, 2^112211222111 is an apocalyptic number.

112211222111 is a deficient number, since it is larger than the sum of its proper divisors (3228313).

112211222111 is an equidigital number, since it uses as much as digits as its factorization.

112211222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228312.

The product of its digits is 32, while the sum is 17.

Adding to 112211222111 its reverse (111222112211), we get a palindrome (223433334322).

The spelling of 112211222111 in words is "one hundred twelve billion, two hundred eleven million, two hundred twenty-two thousand, one hundred eleven".