215322240205 has 16 divisors (see below), whose sum is σ = 263408731200. Its totient is φ = 168924044160.

The previous prime is 215322240179. The next prime is 215322240247. The reversal of 215322240205 is 502042223512.

It is not a de Polignac number, because 215322240205 - 2²⁷ = 215188022477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771651 + ... + 1012960.

It is an arithmetic number, because the mean of its divisors is an integer number (16463045700).

Almost surely, 2^215322240205 is an apocalyptic number.

It is an amenable number.

215322240205 is a deficient number, since it is larger than the sum of its proper divisors (48086490995).

215322240205 is a wasteful number, since it uses less digits than its factorization.

215322240205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785084.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 215322240205 its reverse (502042223512), we get a palindrome (717364463717).

The spelling of 215322240205 in words is "two hundred fifteen billion, three hundred twenty-two million, two hundred forty thousand, two hundred five".