10010121111649 has 2 divisors, whose sum is σ = 10010121111650. Its totient is φ = 10010121111648.

The previous prime is 10010121111647. The next prime is 10010121111707. The reversal of 10010121111649 is 94611112101001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8891984055249 + 1118137056400 = 2981943^2 + 1057420^2 .

It is a cyclic number.

It is not a de Polignac number, because 10010121111649 - 2¹ = 10010121111647 is a prime.

Together with 10010121111647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10010121111647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005060555824 + 5005060555825.

It is an arithmetic number, because the mean of its divisors is an integer number (5005060555825).

Almost surely, 2^{10010121111649} is an apocalyptic number.

It is an amenable number.

10010121111649 is a deficient number, since it is larger than the sum of its proper divisors (1).

10010121111649 is an equidigital number, since it uses as much as digits as its factorization.

10010121111649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 10010121111649 in words is "ten trillion, ten billion, one hundred twenty-one million, one hundred eleven thousand, six hundred forty-nine".