111101222201111 has 16 divisors (see below), whose sum is σ = 114566125845888. Its totient is φ = 107683825267200.

The previous prime is 111101222201071. The next prime is 111101222201119. The reversal of 111101222201111 is 111102222101111.

It is a cyclic number.

It is not a de Polignac number, because 111101222201111 - 2³⁸ = 110826344294167 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 111101222201111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101222201119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2584220 + ... + 15128801.

It is an arithmetic number, because the mean of its divisors is an integer number (7160382865368).

Almost surely, 2^{111101222201111} is an apocalyptic number.

111101222201111 is a deficient number, since it is larger than the sum of its proper divisors (3464903644777).

111101222201111 is a wasteful number, since it uses less digits than its factorization.

111101222201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17714362.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111101222201111 its reverse (111102222101111), we get a palindrome (222203444302222).

The spelling of 111101222201111 in words is "one hundred eleven trillion, one hundred one billion, two hundred twenty-two million, two hundred one thousand, one hundred eleven".