121110 has 32 divisors (see below), whose sum is σ = 317952. Its totient is φ = 29280.

The previous prime is 121081. The next prime is 121123. The reversal of 121110 is 11121.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147 + ... + 513.

It is an arithmetic number, because the mean of its divisors is an integer number (9936).

2¹²¹¹¹⁰ is an apocalyptic number.

121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158976).

121110 is an abundant number, since it is smaller than the sum of its proper divisors (196842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121110 is a wasteful number, since it uses less digits than its factorization.

121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 121110 is about 348.0086205829. The cubic root of 121110 is about 49.4758580367.

Adding to 121110 its reverse (11121), we get a palindrome (132231).

It can be divided in two parts, 1211 and 10, that added together give a palindrome (1221).

The spelling of 121110 in words is "one hundred twenty-one thousand, one hundred ten", and thus it is an iban number.