216358122 has 8 divisors (see below), whose sum is σ = 432716256. Its totient is φ = 72119372.

The previous prime is 216358097. The next prime is 216358123. The reversal of 216358122 is 221853612.

It is a sphenic number, since it is the product of 3 distinct primes.

216358122 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 216358122.

It is not an unprimeable number, because it can be changed into a prime (216358123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18029838 + ... + 18029849.

It is an arithmetic number, because the mean of its divisors is an integer number (54089532).

Almost surely, 2^216358122 is an apocalyptic number.

216358122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216358122 is a wasteful number, since it uses less digits than its factorization.

216358122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36059692.

The product of its digits is 5760, while the sum is 30.

The square root of 216358122 is about 14709.1169687375. The cubic root of 216358122 is about 600.3314113549.

The spelling of 216358122 in words is "two hundred sixteen million, three hundred fifty-eight thousand, one hundred twenty-two".