22226216 has 8 divisors (see below), whose sum is σ = 41674170. Its totient is φ = 11113104.

The previous prime is 22226207. The next prime is 22226221. The reversal of 22226216 is 61262222.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 417316 = 4670^2 + 646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22226191 and 22226200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389131 + ... + 1389146.

Almost surely, 2^22226216 is an apocalyptic number.

It is an amenable number.

22226216 is a deficient number, since it is larger than the sum of its proper divisors (19447954).

22226216 is a wasteful number, since it uses less digits than its factorization.

22226216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778283 (or 2778279 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 22226216 is about 4714.4687929819. The cubic root of 22226216 is about 281.1610631716.

Adding to 22226216 its reverse (61262222), we get a palindrome (83488438).

The spelling of 22226216 in words is "twenty-two million, two hundred twenty-six thousand, two hundred sixteen".