111210221211211 has 8 divisors (see below), whose sum is σ = 111429236574864. Its totient is φ = 110991403073280.

The previous prime is 111210221211179. The next prime is 111210221211281. The reversal of 111210221211211 is 112112122012111.

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 111210221211211 - 2⁵ = 111210221211179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210221211281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48177550 + ... + 50433091.

It is an arithmetic number, because the mean of its divisors is an integer number (13928654571858).

Almost surely, 2^{111210221211211} is an apocalyptic number.

111210221211211 is a deficient number, since it is larger than the sum of its proper divisors (219015363653).

111210221211211 is an equidigital number, since it uses as much as digits as its factorization.

111210221211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98612861.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111210221211211 its reverse (112112122012111), we get a palindrome (223322343223322).

The spelling of 111210221211211 in words is "one hundred eleven trillion, two hundred ten billion, two hundred twenty-one million, two hundred eleven thousand, two hundred eleven".