216302122 has 16 divisors (see below), whose sum is σ = 326541600. Its totient is φ = 107457840.

The previous prime is 216302089. The next prime is 216302123. The reversal of 216302122 is 221203612.

It is a self number, because there is not a number n which added to its sum of digits gives 216302122.

It is not an unprimeable number, because it can be changed into a prime (216302123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349129 + ... + 349747.

It is an arithmetic number, because the mean of its divisors is an integer number (20408850).

Almost surely, 2^216302122 is an apocalyptic number.

216302122 is a deficient number, since it is larger than the sum of its proper divisors (110239478).

216302122 is a wasteful number, since it uses less digits than its factorization.

216302122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 216302122 is about 14707.2132642455. The cubic root of 216302122 is about 600.2796122673.

Adding to 216302122 its reverse (221203612), we get a palindrome (437505734).

The spelling of 216302122 in words is "two hundred sixteen million, three hundred two thousand, one hundred twenty-two".