121100210017 has 2 divisors, whose sum is σ = 121100210018. Its totient is φ = 121100210016.

The previous prime is 121100209999. The next prime is 121100210053. The reversal of 121100210017 is 710012001121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104904084321 + 16196125696 = 323889^2 + 127264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100210017 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100210417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550105008 + 60550105009.

It is an arithmetic number, because the mean of its divisors is an integer number (60550105009).

Almost surely, 2^121100210017 is an apocalyptic number.

It is an amenable number.

121100210017 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100210017 is an equidigital number, since it uses as much as digits as its factorization.

121100210017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 121100210017 its reverse (710012001121), we get a palindrome (831112211138).

The spelling of 121100210017 in words is "one hundred twenty-one billion, one hundred million, two hundred ten thousand, seventeen".