22316212 has 6 divisors (see below), whose sum is σ = 39053378. Its totient is φ = 11158104.

The previous prime is 22316201. The next prime is 22316213. The reversal of 22316212 is 21261322.

It can be written as a sum of positive squares in only one way, i.e., 22316176 + 36 = 4724^2 + 6^2 .

It is a super-3 number, since 3×22316212³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22316212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22316213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2789523 + ... + 2789530.

Almost surely, 2^22316212 is an apocalyptic number.

It is an amenable number.

22316212 is a deficient number, since it is larger than the sum of its proper divisors (16737166).

22316212 is a wasteful number, since it uses less digits than its factorization.

22316212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579057 (or 5579055 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 22316212 is about 4724.0038103287. The cubic root of 22316212 is about 281.5400344993.

Adding to 22316212 its reverse (21261322), we get a palindrome (43577534).

The spelling of 22316212 in words is "twenty-two million, three hundred sixteen thousand, two hundred twelve".