212103334909 has 2 divisors, whose sum is σ = 212103334910. Its totient is φ = 212103334908.

The previous prime is 212103334879. The next prime is 212103334973. The reversal of 212103334909 is 909433301212.

212103334909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211701212100 + 402122809 = 460110^2 + 20053^2 .

It is a cyclic number.

It is not a de Polignac number, because 212103334909 - 2²¹ = 212101237757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212103335909) 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, 106051667454 + 106051667455.

It is an arithmetic number, because the mean of its divisors is an integer number (106051667455).

Almost surely, 2^212103334909 is an apocalyptic number.

It is an amenable number.

212103334909 is a deficient number, since it is larger than the sum of its proper divisors (1).

212103334909 is an equidigital number, since it uses as much as digits as its factorization.

212103334909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 212103334909 in words is "two hundred twelve billion, one hundred three million, three hundred thirty-four thousand, nine hundred nine".