205302201215 has 4 divisors (see below), whose sum is σ = 246362641464. Its totient is φ = 164241760968.

The previous prime is 205302201187. The next prime is 205302201263. The reversal of 205302201215 is 512102203502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205302201215 - 2¹⁸ = 205301939071 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 (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20530220117 + ... + 20530220126.

It is an arithmetic number, because the mean of its divisors is an integer number (61590660366).

Almost surely, 2^205302201215 is an apocalyptic number.

205302201215 is a deficient number, since it is larger than the sum of its proper divisors (41060440249).

205302201215 is an equidigital number, since it uses as much as digits as its factorization.

205302201215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41060440248.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 205302201215 its reverse (512102203502), we get a palindrome (717404404717).

The spelling of 205302201215 in words is "two hundred five billion, three hundred two million, two hundred one thousand, two hundred fifteen".