22452212 has 12 divisors (see below), whose sum is σ = 39405156. Its totient is φ = 11193600.

The previous prime is 22452197. The next prime is 22452233. The reversal of 22452212 is 21225422.

It can be written as a sum of positive squares in 2 ways, for example, as 17673616 + 4778596 = 4204^2 + 2186^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6539 + ... + 9362.

It is an arithmetic number, because the mean of its divisors is an integer number (3283763).

Almost surely, 2^22452212 is an apocalyptic number.

It is an amenable number.

22452212 is a deficient number, since it is larger than the sum of its proper divisors (16952944).

22452212 is a wasteful number, since it uses less digits than its factorization.

22452212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258 (or 16256 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 22452212 is about 4738.3765152212. The cubic root of 22452212 is about 282.1107993089.

Adding to 22452212 its reverse (21225422), we get a palindrome (43677634).

The spelling of 22452212 in words is "twenty-two million, four hundred fifty-two thousand, two hundred twelve".