1111220110211 has 4 divisors (see below), whose sum is σ = 1111222678800. Its totient is φ = 1111217541624.

The previous prime is 1111220110207. The next prime is 1111220110219. The reversal of 1111220110211 is 1120110221111.

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

It is a cyclic number.

It is not a de Polignac number, because 1111220110211 - 2² = 1111220110207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111220110219) 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 3 ways as a sum of consecutive naturals, for example, 458276 + ... + 1559633.

It is an arithmetic number, because the mean of its divisors is an integer number (277805669700).

Almost surely, 2^{1111220110211} is an apocalyptic number.

1111220110211 is a deficient number, since it is larger than the sum of its proper divisors (2568589).

1111220110211 is an equidigital number, since it uses as much as digits as its factorization.

1111220110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568588.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111220110211 its reverse (1120110221111), we get a palindrome (2231330331322).

The spelling of 1111220110211 in words is "one trillion, one hundred eleven billion, two hundred twenty million, one hundred ten thousand, two hundred eleven".