22000216 has 24 divisors (see below), whose sum is σ = 47986020. Its totient is φ = 9428496.

The previous prime is 22000211. The next prime is 22000243. The reversal of 22000216 is 61200022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22000196 and 22000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27670 + ... + 28453.

Almost surely, 2^22000216 is an apocalyptic number.

It is an amenable number.

22000216 is an abundant number, since it is smaller than the sum of its proper divisors (25985804).

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

22000216 is a wasteful number, since it uses less digits than its factorization.

22000216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56143 (or 56132 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22000216 is about 4690.4387854443. The cubic root of 22000216 is about 280.2048500936.

Adding to 22000216 its reverse (61200022), we get a palindrome (83200238).

The spelling of 22000216 in words is "twenty-two million, two hundred sixteen", and thus it is an aban number.