110001220111 has 4 divisors (see below), whose sum is σ = 110056582552. Its totient is φ = 109945857672.

The previous prime is 110001220097. The next prime is 110001220127. The reversal of 110001220111 is 111022100011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111022100011 = 587 ⋅189134753.

It is a cyclic number.

It is not a de Polignac number, because 110001220111 - 2⁵ = 110001220079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001280111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27678240 + ... + 27682213.

It is an arithmetic number, because the mean of its divisors is an integer number (27514145638).

Almost surely, 2^110001220111 is an apocalyptic number.

110001220111 is a deficient number, since it is larger than the sum of its proper divisors (55362441).

110001220111 is an equidigital number, since it uses as much as digits as its factorization.

110001220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55362440.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 110001220111 its reverse (111022100011), we get a palindrome (221023320122).

The spelling of 110001220111 in words is "one hundred ten billion, one million, two hundred twenty thousand, one hundred eleven".