111220011223 has 4 divisors (see below), whose sum is σ = 111235289688. Its totient is φ = 111204732760.

The previous prime is 111220011209. The next prime is 111220011263. The reversal of 111220011223 is 322110022111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111220011223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111220011197 and 111220011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220011263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7628308 + ... + 7642873.

It is an arithmetic number, because the mean of its divisors is an integer number (27808822422).

Almost surely, 2^111220011223 is an apocalyptic number.

111220011223 is a deficient number, since it is larger than the sum of its proper divisors (15278465).

111220011223 is an equidigital number, since it uses as much as digits as its factorization.

111220011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15278464.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111220011223 its reverse (322110022111), we get a palindrome (433330033334).

The spelling of 111220011223 in words is "one hundred eleven billion, two hundred twenty million, eleven thousand, two hundred twenty-three".