110110111200121 has 4 divisors (see below), whose sum is σ = 116587176564852. Its totient is φ = 103633045835392.

The previous prime is 110110111200109. The next prime is 110110111200149. The reversal of 110110111200121 is 121002111011011.

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 85697232998400 + 24412878201721 = 9257280^2 + 4940939^2 .

It is a cyclic number.

It is not a de Polignac number, because 110110111200121 - 2⁷ = 110110111199993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110110111200191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238532682340 + ... + 3238532682373.

It is an arithmetic number, because the mean of its divisors is an integer number (29146794141213).

Almost surely, 2^{110110111200121} is an apocalyptic number.

It is an amenable number.

110110111200121 is a deficient number, since it is larger than the sum of its proper divisors (6477065364731).

110110111200121 is an equidigital number, since it uses as much as digits as its factorization.

110110111200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477065364730.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 110110111200121 its reverse (121002111011011), we get a palindrome (231112222211132).

The spelling of 110110111200121 in words is "one hundred ten trillion, one hundred ten billion, one hundred eleven million, two hundred thousand, one hundred twenty-one".