110111112220121 has 8 divisors (see below), whose sum is σ = 111159951262920. Its totient is φ = 109063578518272.

The previous prime is 110111112220117. The next prime is 110111112220157. The reversal of 110111112220121 is 121022211111011.

It can be written as a sum of positive squares in 4 ways, for example, as 185554177600 + 109925558042521 = 430760^2 + 10484539^2 .

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 110111112220121 - 2² = 110111112220117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110111112220121.

It is not an unprimeable number, because it can be changed into a prime (110111112220621) 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, 326165726 + ... + 326503143.

It is an arithmetic number, because the mean of its divisors is an integer number (13894993907865).

Almost surely, 2^{110111112220121} is an apocalyptic number.

It is an amenable number.

110111112220121 is a deficient number, since it is larger than the sum of its proper divisors (1048839042799).

110111112220121 is a wasteful number, since it uses less digits than its factorization.

110111112220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652670475.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 110111112220121 its reverse (121022211111011), we get a palindrome (231133323331132).

The spelling of 110111112220121 in words is "one hundred ten trillion, one hundred eleven billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-one".