10121010217 has 2 divisors, whose sum is σ = 10121010218. Its totient is φ = 10121010216.

The previous prime is 10121010191. The next prime is 10121010239. The reversal of 10121010217 is 71201012101.

10121010217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8793938176 + 1327072041 = 93776^2 + 36429^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121010217 - 2¹⁹ = 10120485929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10121010217.

It is not a weakly prime, because it can be changed into another prime (10121010287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060505108 + 5060505109.

It is an arithmetic number, because the mean of its divisors is an integer number (5060505109).

Almost surely, 2^10121010217 is an apocalyptic number.

It is an amenable number.

10121010217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121010217 is an equidigital number, since it uses as much as digits as its factorization.

10121010217 is an odious number, because the sum of its binary digits is odd.

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

Adding to 10121010217 its reverse (71201012101), we get a palindrome (81322022318).

The spelling of 10121010217 in words is "ten billion, one hundred twenty-one million, ten thousand, two hundred seventeen".