110002121 has 8 divisors (see below), whose sum is σ = 116572680. Its totient is φ = 103442688.

The previous prime is 110002111. The next prime is 110002159. The reversal of 110002121 is 121200011.

It can be written as a sum of positive squares in 4 ways, for example, as 19009600 + 90992521 = 4360^2 + 9539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 110002121 - 2¹⁰ = 110001097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 110002099 and 110002108.

It is not an unprimeable number, because it can be changed into a prime (110002111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26435 + ... + 30311.

It is an arithmetic number, because the mean of its divisors is an integer number (14571585).

Almost surely, 2^110002121 is an apocalyptic number.

It is an amenable number.

110002121 is a deficient number, since it is larger than the sum of its proper divisors (6570559).

110002121 is a wasteful number, since it uses less digits than its factorization.

110002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 110002121 is about 10488.1895959217. The cubic root of 110002121 is about 479.1450652627.

Adding to 110002121 its reverse (121200011), we get a palindrome (231202132).

The spelling of 110002121 in words is "one hundred ten million, two thousand, one hundred twenty-one".