110201020121221 has 8 divisors (see below), whose sum is σ = 111298068554904. Its totient is φ = 109104088339200.

The previous prime is 110201020121209. The next prime is 110201020121249. The reversal of 110201020121221 is 122121020102011.

It can be written as a sum of positive squares in 4 ways, for example, as 76383422337121 + 33817597784100 = 8739761^2 + 5815290^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110201020121221 - 2³⁵ = 110166660382853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110201020121195 and 110201020121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110201020121281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27263496 + ... + 31043521.

It is an arithmetic number, because the mean of its divisors is an integer number (13912258569363).

Almost surely, 2^{110201020121221} is an apocalyptic number.

It is an amenable number.

110201020121221 is a deficient number, since it is larger than the sum of its proper divisors (1097048433683).

110201020121221 is a wasteful number, since it uses less digits than its factorization.

110201020121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58325831.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 110201020121221 its reverse (122121020102011), we get a palindrome (232322040223232).

The spelling of 110201020121221 in words is "one hundred ten trillion, two hundred one billion, twenty million, one hundred twenty-one thousand, two hundred twenty-one".