220112221111 has 4 divisors (see below), whose sum is σ = 220136527800. Its totient is φ = 220087914424.

The previous prime is 220112221097. The next prime is 220112221129. The reversal of 220112221111 is 111122211022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111122211022 = 2 ⋅55561105511.

It is a cyclic number.

It is not a de Polignac number, because 220112221111 - 2⁷ = 220112220983 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 (220112221151) 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, 12139756 + ... + 12157873.

It is an arithmetic number, because the mean of its divisors is an integer number (55034131950).

Almost surely, 2^220112221111 is an apocalyptic number.

220112221111 is a deficient number, since it is larger than the sum of its proper divisors (24306689).

220112221111 is an equidigital number, since it uses as much as digits as its factorization.

220112221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24306688.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220112221111 its reverse (111122211022), we get a palindrome (331234432133).

The spelling of 220112221111 in words is "two hundred twenty billion, one hundred twelve million, two hundred twenty-one thousand, one hundred eleven".