10212529109 has 2 divisors, whose sum is σ = 10212529110. Its totient is φ = 10212529108.

The previous prime is 10212529099. The next prime is 10212529163. The reversal of 10212529109 is 90192521201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5245380625 + 4967148484 = 72425^2 + 70478^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212529109 - 2²⁰ = 10211480533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212529199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106264554 + 5106264555.

It is an arithmetic number, because the mean of its divisors is an integer number (5106264555).

Almost surely, 2^10212529109 is an apocalyptic number.

It is an amenable number.

10212529109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212529109 is an equidigital number, since it uses as much as digits as its factorization.

10212529109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 10212529109 in words is "ten billion, two hundred twelve million, five hundred twenty-nine thousand, one hundred nine".