10121101011251 has 2 divisors, whose sum is σ = 10121101011252. Its totient is φ = 10121101011250.

The previous prime is 10121101011137. The next prime is 10121101011257. The reversal of 10121101011251 is 15211010112101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10121101011251 - 2¹⁰ = 10121101010227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10121101011257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060550505625 + 5060550505626.

It is an arithmetic number, because the mean of its divisors is an integer number (5060550505626).

Almost surely, 2^{10121101011251} is an apocalyptic number.

10121101011251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121101011251 is an equidigital number, since it uses as much as digits as its factorization.

10121101011251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 17.

Adding to 10121101011251 its reverse (15211010112101), we get a palindrome (25332111123352).

The spelling of 10121101011251 in words is "ten trillion, one hundred twenty-one billion, one hundred one million, eleven thousand, two hundred fifty-one".