110121220211221 has 8 divisors (see below), whose sum is σ = 110459401808544. Its totient is φ = 109783071681360.

The previous prime is 110121220211179. The next prime is 110121220211231. The reversal of 110121220211221 is 122112022121011.

It is a happy number.

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 110121220211221 - 2²⁹ = 110120683340309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121220211231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587970 + ... + 14925283.

It is an arithmetic number, because the mean of its divisors is an integer number (13807425226068).

Almost surely, 2^{110121220211221} is an apocalyptic number.

It is an amenable number.

110121220211221 is a deficient number, since it is larger than the sum of its proper divisors (338181597323).

110121220211221 is a wasteful number, since it uses less digits than its factorization.

110121220211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16533731.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 110121220211221 its reverse (122112022121011), we get a palindrome (232233242332232).

The spelling of 110121220211221 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty-one".