111222020201111 has 4 divisors (see below), whose sum is σ = 111284399350512. Its totient is φ = 111159641051712.

The previous prime is 111222020201101. The next prime is 111222020201209. The reversal of 111222020201111 is 111102020222111.

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 111222020201111 - 2²⁶ = 111221953092247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111222020201111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222020201101) 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 3 ways as a sum of consecutive naturals, for example, 31189572026 + ... + 31189575591.

It is an arithmetic number, because the mean of its divisors is an integer number (27821099837628).

Almost surely, 2^{111222020201111} is an apocalyptic number.

111222020201111 is a deficient number, since it is larger than the sum of its proper divisors (62379149401).

111222020201111 is an equidigital number, since it uses as much as digits as its factorization.

111222020201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62379149400.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111222020201111 its reverse (111102020222111), we get a palindrome (222324040423222).

The spelling of 111222020201111 in words is "one hundred eleven trillion, two hundred twenty-two billion, twenty million, two hundred one thousand, one hundred eleven".