110121110220221 has 8 divisors (see below), whose sum is σ = 110183965630200. Its totient is φ = 110058264518400.

The previous prime is 110121110220211. The next prime is 110121110220259. The reversal of 110121110220221 is 122022011121011.

It can be written as a sum of positive squares in 4 ways, for example, as 947575699225 + 109173534520996 = 973435^2 + 10448614^2 .

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 110121110220221 - 2³⁸ = 109846232313277 is a prime.

It is a super-2 number, since 2×110121110220221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 110121110220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121110220211) 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 7 ways as a sum of consecutive naturals, for example, 20326571 + ... + 25167671.

It is an arithmetic number, because the mean of its divisors is an integer number (13772995703775).

Almost surely, 2^{110121110220221} is an apocalyptic number.

It is an amenable number.

110121110220221 is a deficient number, since it is larger than the sum of its proper divisors (62855409979).

110121110220221 is a wasteful number, since it uses less digits than its factorization.

110121110220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854079.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 110121110220221 its reverse (122022011121011), we get a palindrome (232143121341232).

The spelling of 110121110220221 in words is "one hundred ten trillion, one hundred twenty-one billion, one hundred ten million, two hundred twenty thousand, two hundred twenty-one".