121017 has 16 divisors (see below), whose sum is σ = 181440. Its totient is φ = 71232.

The previous prime is 121013. The next prime is 121019. The reversal of 121017 is 710121.

121017 = 14² + 15² + ... + 71².

It is not a de Polignac number, because 121017 - 2² = 121013 is a prime.

It is a super-2 number, since 2×121017² = 29290228578, which contains 22 as substring.

It is a plaindrome in base 15.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 120993 and 121011.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121017.

It is not an unprimeable number, because it can be changed into a prime (121013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078 + ... + 1184.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2¹²¹⁰¹⁷ is an apocalyptic number.

It is an amenable number.

121017 is a deficient number, since it is larger than the sum of its proper divisors (60423).

121017 is a wasteful number, since it uses less digits than its factorization.

121017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152.

The product of its (nonzero) digits is 14, while the sum is 12.

The square root of 121017 is about 347.8749775422. The cubic root of 121017 is about 49.4631906735.

Adding to 121017 its reverse (710121), we get a palindrome (831138).

The spelling of 121017 in words is "one hundred twenty-one thousand, seventeen", and thus it is an iban number.