212230320545 has 32 divisors (see below), whose sum is σ = 264564099072. Its totient is φ = 163332260352.

The previous prime is 212230320539. The next prime is 212230320559. The reversal of 212230320545 is 545023032212.

212230320545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212230320545 - 2¹⁸ = 212230058401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 5005304 + ... + 5047526.

It is an arithmetic number, because the mean of its divisors is an integer number (8267628096).

Almost surely, 2^212230320545 is an apocalyptic number.

It is an amenable number.

212230320545 is a deficient number, since it is larger than the sum of its proper divisors (52333778527).

212230320545 is a wasteful number, since it uses less digits than its factorization.

212230320545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42641.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 212230320545 its reverse (545023032212), we get a palindrome (757253352757).

The spelling of 212230320545 in words is "two hundred twelve billion, two hundred thirty million, three hundred twenty thousand, five hundred forty-five".