212345205407 has 2 divisors, whose sum is σ = 212345205408. Its totient is φ = 212345205406.

The previous prime is 212345205349. The next prime is 212345205491. The reversal of 212345205407 is 704502543212.

212345205407 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 is a cyclic number.

It is not a de Polignac number, because 212345205407 - 2¹⁶ = 212345139871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212345205307) 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, 106172602703 + 106172602704.

It is an arithmetic number, because the mean of its divisors is an integer number (106172602704).

Almost surely, 2^212345205407 is an apocalyptic number.

212345205407 is a deficient number, since it is larger than the sum of its proper divisors (1).

212345205407 is an equidigital number, since it uses as much as digits as its factorization.

212345205407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 35.

Adding to 212345205407 its reverse (704502543212), we get a palindrome (916847748619).

The spelling of 212345205407 in words is "two hundred twelve billion, three hundred forty-five million, two hundred five thousand, four hundred seven".