121100017 has 2 divisors, whose sum is σ = 121100018. Its totient is φ = 121100016.

The previous prime is 121100011. The next prime is 121100029. The reversal of 121100017 is 710001121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119333776 + 1766241 = 10924^2 + 1329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100017 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550008 + 60550009.

It is an arithmetic number, because the mean of its divisors is an integer number (60550009).

Almost surely, 2^121100017 is an apocalyptic number.

It is an amenable number.

121100017 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100017 is an equidigital number, since it uses as much as digits as its factorization.

121100017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 121100017 is about 11004.5452881980. The cubic root of 121100017 is about 494.7449858092.

Adding to 121100017 its reverse (710001121), we get a palindrome (831101138).

The spelling of 121100017 in words is "one hundred twenty-one million, one hundred thousand, seventeen".