111222112211 has 8 divisors (see below), whose sum is σ = 127125653760. Its totient is φ = 95322237768.

The previous prime is 111222112187. The next prime is 111222112219. The reversal of 111222112211 is 112211222111.

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-111222112211 is a prime.

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 111222112211.

It is not an unprimeable number, because it can be changed into a prime (111222112219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851471 + ... + 973368.

It is an arithmetic number, because the mean of its divisors is an integer number (15890706720).

Almost surely, 2^111222112211 is an apocalyptic number.

111222112211 is a deficient number, since it is larger than the sum of its proper divisors (15903541549).

111222112211 is an equidigital number, since it uses as much as digits as its factorization.

111222112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833553.

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

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

The spelling of 111222112211 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".