110001211021201 has 4 divisors (see below), whose sum is σ = 110003335920100. Its totient is φ = 109999086122304.

The previous prime is 110001211021159. The next prime is 110001211021259. The reversal of 110001211021201 is 102120112100011.

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 53035549067601 + 56965661953600 = 7282551^2 + 7547560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110001211021201 is a prime.

It is a super-2 number, since 2×110001211021201² (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 (110001211022201) 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, 1062371796 + ... + 1062475333.

It is an arithmetic number, because the mean of its divisors is an integer number (27500833980025).

Almost surely, 2^{110001211021201} is an apocalyptic number.

It is an amenable number.

110001211021201 is a deficient number, since it is larger than the sum of its proper divisors (2124898899).

110001211021201 is an equidigital number, since it uses as much as digits as its factorization.

110001211021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124898898.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 110001211021201 its reverse (102120112100011), we get a palindrome (212121323121212).

The spelling of 110001211021201 in words is "one hundred ten trillion, one billion, two hundred eleven million, twenty-one thousand, two hundred one".