112221112111211 has 16 divisors (see below), whose sum is σ = 112749397383168. Its totient is φ = 111694009574400.

The previous prime is 112221112111193. The next prime is 112221112111363. The reversal of 112221112111211 is 112111211122211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112221112111211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112221112113211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2067154910 + ... + 2067209196.

It is an arithmetic number, because the mean of its divisors is an integer number (7046837336448).

Almost surely, 2^{112221112111211} is an apocalyptic number.

112221112111211 is a deficient number, since it is larger than the sum of its proper divisors (528285271957).

112221112111211 is an equidigital number, since it uses as much as digits as its factorization.

112221112111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65002.

The product of its digits is 32, while the sum is 20.

Adding to 112221112111211 its reverse (112111211122211), we get a palindrome (224332323233422).

It can be divided in two parts, 11 and 2221112111211, that added together give a palindrome (2221112111222).

The spelling of 112221112111211 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, two hundred eleven".