201322215 has 48 divisors (see below), whose sum is σ = 362209536. Its totient is φ = 103334400.

The previous prime is 201322193. The next prime is 201322223. The reversal of 201322215 is 512223102.

It is not a de Polignac number, because 201322215 - 2¹² = 201318119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 386155 + ... + 386675.

It is an arithmetic number, because the mean of its divisors is an integer number (7546032).

Almost surely, 2^201322215 is an apocalyptic number.

201322215 is a deficient number, since it is larger than the sum of its proper divisors (160887321).

201322215 is a wasteful number, since it uses less digits than its factorization.

201322215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201322215 is about 14188.8059751341. The cubic root of 201322215 is about 586.0894447757.

Adding to 201322215 its reverse (512223102), we get a palindrome (713545317).

The spelling of 201322215 in words is "two hundred one million, three hundred twenty-two thousand, two hundred fifteen".