110110020121221 has 8 divisors (see below), whose sum is σ = 149583423561120. Its totient is φ = 72021648381072.

The previous prime is 110110020121183. The next prime is 110110020121223. The reversal of 110110020121221 is 122121020011011.

It is a happy number.

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

It is not a de Polignac number, because 110110020121221 - 2²⁶ = 110109953012357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110110020121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110110020121223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346257924751 + ... + 346257925068.

It is an arithmetic number, because the mean of its divisors is an integer number (18697927945140).

Almost surely, 2^{110110020121221} is an apocalyptic number.

It is an amenable number.

110110020121221 is a deficient number, since it is larger than the sum of its proper divisors (39473403439899).

110110020121221 is an equidigital number, since it uses as much as digits as its factorization.

110110020121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692515849875.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 110110020121221 its reverse (122121020011011), we get a palindrome (232231040132232).

The spelling of 110110020121221 in words is "one hundred ten trillion, one hundred ten billion, twenty million, one hundred twenty-one thousand, two hundred twenty-one".