111110221012201 has 4 divisors (see below), whose sum is σ = 111595418484100. Its totient is φ = 110625023540304.

The previous prime is 111110221012183. The next prime is 111110221012229. The reversal of 111110221012201 is 102210122011111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 107119415722201 + 3990805290000 = 10349851^2 + 1997700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110221012201 is a prime.

It is a super-2 number, since 2×111110221012201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110221019201) 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, 242598735606 + ... + 242598736063.

It is an arithmetic number, because the mean of its divisors is an integer number (27898854621025).

Almost surely, 2^{111110221012201} is an apocalyptic number.

It is an amenable number.

111110221012201 is a deficient number, since it is larger than the sum of its proper divisors (485197471899).

111110221012201 is an equidigital number, since it uses as much as digits as its factorization.

111110221012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485197471898.

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

Adding to 111110221012201 its reverse (102210122011111), we get a palindrome (213320343023312).

It can be divided in two parts, 1111 and 10221012201, that multiplied together give a palindrome (11355544555311).

The spelling of 111110221012201 in words is "one hundred eleven trillion, one hundred ten billion, two hundred twenty-one million, twelve thousand, two hundred one".