111122220110201 has 16 divisors (see below), whose sum is σ = 118452493098000. Its totient is φ = 103880180471808.

The previous prime is 111122220110173. The next prime is 111122220110219. The reversal of 111122220110201 is 102011022221111.

It can be written as a sum of positive squares in 8 ways, for example, as 472964300176 + 110649255810025 = 687724^2 + 10518995^2 .

It is a cyclic number.

It is not a de Polignac number, because 111122220110201 - 2²² = 111122215915897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 111122220110201.

It is not an unprimeable number, because it can be changed into a prime (111122220110261) 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, 75537581 + ... + 76994613.

It is an arithmetic number, because the mean of its divisors is an integer number (7403280818625).

Almost surely, 2^{111122220110201} is an apocalyptic number.

It is an amenable number.

111122220110201 is a deficient number, since it is larger than the sum of its proper divisors (7330272987799).

111122220110201 is a wasteful number, since it uses less digits than its factorization.

111122220110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487308.

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

Adding to 111122220110201 its reverse (102011022221111), we get a palindrome (213133242331312).

The spelling of 111122220110201 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred twenty million, one hundred ten thousand, two hundred one".