22220116 has 18 divisors (see below), whose sum is σ = 40653242. Its totient is φ = 10626000.

The previous prime is 22220113. The next prime is 22220117. The reversal of 22220116 is 61102222.

It can be written as a sum of positive squares in only one way, i.e., 17139600 + 5080516 = 4140^2 + 2254^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22220116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220113) 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 5 ways as a sum of consecutive naturals, for example, 3135 + ... + 7366.

Almost surely, 2^22220116 is an apocalyptic number.

It is an amenable number.

22220116 is a deficient number, since it is larger than the sum of its proper divisors (18433126).

22220116 is a wasteful number, since it uses less digits than its factorization.

22220116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10551 (or 10526 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 22220116 is about 4713.8218040142. The cubic root of 22220116 is about 281.1353392035.

Adding to 22220116 its reverse (61102222), we get a palindrome (83322338).

The spelling of 22220116 in words is "twenty-two million, two hundred twenty thousand, one hundred sixteen".