22135216 has 10 divisors (see below), whose sum is σ = 42887012. Its totient is φ = 11067600.

The previous prime is 22135193. The next prime is 22135219. The reversal of 22135216 is 61253122.

It is not an unprimeable number, because it can be changed into a prime (22135219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691710 + ... + 691741.

Almost surely, 2^22135216 is an apocalyptic number.

It is an amenable number.

22135216 is a deficient number, since it is larger than the sum of its proper divisors (20751796).

22135216 is a wasteful number, since it uses less digits than its factorization.

22135216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383459 (or 1383453 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 22135216 is about 4704.8077537770. The cubic root of 22135216 is about 280.7768224093.

Adding to 22135216 its reverse (61253122), we get a palindrome (83388338).

The spelling of 22135216 in words is "twenty-two million, one hundred thirty-five thousand, two hundred sixteen".