121002017 has 4 divisors (see below), whose sum is σ = 123576576. Its totient is φ = 118427460.

The previous prime is 121002001. The next prime is 121002019. The reversal of 121002017 is 710200121.

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 121002017 - 2⁴ = 121002001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121001992 and 121002010.

It is not an unprimeable number, because it can be changed into a prime (121002019) 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, 1287209 + ... + 1287302.

It is an arithmetic number, because the mean of its divisors is an integer number (30894144).

Almost surely, 2^121002017 is an apocalyptic number.

It is an amenable number.

121002017 is a deficient number, since it is larger than the sum of its proper divisors (2574559).

121002017 is an equidigital number, since it uses as much as digits as its factorization.

121002017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574558.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 121002017 is about 11000.0916814361. The cubic root of 121002017 is about 494.6114925901.

Adding to 121002017 its reverse (710200121), we get a palindrome (831202138).

The spelling of 121002017 in words is "one hundred twenty-one million, two thousand, seventeen".