10212544205 has 4 divisors (see below), whose sum is σ = 12255053052. Its totient is φ = 8170035360.

The previous prime is 10212544187. The next prime is 10212544261. The reversal of 10212544205 is 50244521201.

10212544205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50244521201 = 7 ⋅7177788743.

It can be written as a sum of positive squares in 2 ways, for example, as 3765417769 + 6447126436 = 61363^2 + 80294^2 .

It is not a de Polignac number, because 10212544205 - 2¹⁸ = 10212282061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1021254416 + ... + 1021254425.

It is an arithmetic number, because the mean of its divisors is an integer number (3063763263).

Almost surely, 2^10212544205 is an apocalyptic number.

It is an amenable number.

10212544205 is a deficient number, since it is larger than the sum of its proper divisors (2042508847).

10212544205 is an equidigital number, since it uses as much as digits as its factorization.

10212544205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042508846.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 10212544205 in words is "ten billion, two hundred twelve million, five hundred forty-four thousand, two hundred five".