110111211022121 has 4 divisors (see below), whose sum is σ = 110978228431872. Its totient is φ = 109244193612372.

The previous prime is 110111211022093. The next prime is 110111211022129. The reversal of 110111211022121 is 121220112111011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110111211022121 is a prime.

It is a super-2 number, since 2×110111211022121² (a number of 29 digits) contains 22 as substring.

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 110111211022121.

It is not an unprimeable number, because it can be changed into a prime (110111211022129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433508704685 + ... + 433508704938.

It is an arithmetic number, because the mean of its divisors is an integer number (27744557107968).

Almost surely, 2^{110111211022121} is an apocalyptic number.

It is an amenable number.

110111211022121 is a deficient number, since it is larger than the sum of its proper divisors (867017409751).

110111211022121 is an equidigital number, since it uses as much as digits as its factorization.

110111211022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867017409750.

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

Adding to 110111211022121 its reverse (121220112111011), we get a palindrome (231331323133132).

The spelling of 110111211022121 in words is "one hundred ten trillion, one hundred eleven billion, two hundred eleven million, twenty-two thousand, one hundred twenty-one".