22200016 has 10 divisors (see below), whose sum is σ = 43012562. Its totient is φ = 11100000.

The previous prime is 22200001. The next prime is 22200023. The reversal of 22200016 is 61000222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 484416 = 4660^2 + 696^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22199969 and 22200005.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 693735 + ... + 693766.

Almost surely, 2^22200016 is an apocalyptic number.

It is an amenable number.

22200016 is a deficient number, since it is larger than the sum of its proper divisors (20812546).

22200016 is a wasteful number, since it uses less digits than its factorization.

22200016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387509 (or 1387503 counting only the distinct ones).

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

The square root of 22200016 is about 4711.6892936610. The cubic root of 22200016 is about 281.0505432907.

Adding to 22200016 its reverse (61000222), we get a palindrome (83200238).

The spelling of 22200016 in words is "twenty-two million, two hundred thousand, sixteen".