11111201100101 has 4 divisors (see below), whose sum is σ = 11111284341132. Its totient is φ = 11111117859072.

The previous prime is 11111201100067. The next prime is 11111201100107. The reversal of 11111201100101 is 10100110211111.

It is a happy number.

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 892597911076 + 10218603189025 = 944774^2 + 3196655^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111201100101 - 2¹⁰ = 11111201099077 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 (11111201100107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41419970 + ... + 41687363.

It is an arithmetic number, because the mean of its divisors is an integer number (2777821085283).

Almost surely, 2^{11111201100101} is an apocalyptic number.

It is an amenable number.

11111201100101 is a deficient number, since it is larger than the sum of its proper divisors (83241031).

11111201100101 is an equidigital number, since it uses as much as digits as its factorization.

11111201100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83241030.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11111201100101 its reverse (10100110211111), we get a palindrome (21211311311212).

The spelling of 11111201100101 in words is "eleven trillion, one hundred eleven billion, two hundred one million, one hundred thousand, one hundred one".