22213652 has 12 divisors (see below), whose sum is σ = 40214580. Its totient is φ = 10723776.

The previous prime is 22213651. The next prime is 22213661. The reversal of 22213652 is 25631222.

It can be written as a sum of positive squares in 2 ways, for example, as 5924356 + 16289296 = 2434^2 + 4036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213651) 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 3 ways as a sum of consecutive naturals, for example, 95633 + ... + 95864.

It is an arithmetic number, because the mean of its divisors is an integer number (3351215).

Almost surely, 2^22213652 is an apocalyptic number.

It is an amenable number.

22213652 is a deficient number, since it is larger than the sum of its proper divisors (18000928).

22213652 is a wasteful number, since it uses less digits than its factorization.

22213652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191530 (or 191528 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 22213652 is about 4713.1361109138. The cubic root of 22213652 is about 281.1080750932.

Adding to 22213652 its reverse (25631222), we get a palindrome (47844874).

The spelling of 22213652 in words is "twenty-two million, two hundred thirteen thousand, six hundred fifty-two".