10012021021169 has 2 divisors, whose sum is σ = 10012021021170. Its totient is φ = 10012021021168.

The previous prime is 10012021021151. The next prime is 10012021021229. The reversal of 10012021021169 is 96112012021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8434447340944 + 1577573680225 = 2904212^2 + 1256015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10012021021169 is a prime.

It is a super-2 number, since 2×10012021021169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10012021021129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006010510584 + 5006010510585.

It is an arithmetic number, because the mean of its divisors is an integer number (5006010510585).

Almost surely, 2^{10012021021169} is an apocalyptic number.

It is an amenable number.

10012021021169 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012021021169 is an equidigital number, since it uses as much as digits as its factorization.

10012021021169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 10012021021169 in words is "ten trillion, twelve billion, twenty-one million, twenty-one thousand, one hundred sixty-nine".