1110121 has 4 divisors (see below), whose sum is σ = 1112832.
Its totient is φ = 1107412.
The previous prime is 1110103. The next prime is 1110127. The reversal of 1110121 is 1210111.
Adding to 1110121 its reverse (1210111), we get a palindrome (2320232).
Multipling 1110121 by its reverse (1210111), we get a palindrome (1343369633431).
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 not a de Polignac number, because 1110121 - 25 = 1110089 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1110127) 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, 601 + ... + 1606.
It is an arithmetic number, because the mean of its divisors is an integer number (278208).
21110121 is an apocalyptic number.
It is an amenable number.
1110121 is a deficient number, since it is larger than the sum of its proper divisors (2711).
1110121 is an equidigital number, since it uses as much as digits as its factorization.
1110121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2710.
The product of its (nonzero) digits is 2, while the sum is 7.
The square root of 1110121 is about 1053.6227977792.
The cubic root of 1110121 is about 103.5436426681.
The spelling of 1110121 in words is "one million, one hundred ten thousand, one hundred twenty-one".