22302212 has 6 divisors (see below), whose sum is σ = 39028878. Its totient is φ = 11151104.

The previous prime is 22302211. The next prime is 22302221. The reversal of 22302212 is 21220322.

It can be written as a sum of positive squares in only one way, i.e., 13205956 + 9096256 = 3634^2 + 3016^2 .

It is not an unprimeable number, because it can be changed into a prime (22302211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2787773 + ... + 2787780.

It is an arithmetic number, because the mean of its divisors is an integer number (6504813).

Almost surely, 2^22302212 is an apocalyptic number.

It is an amenable number.

22302212 is a deficient number, since it is larger than the sum of its proper divisors (16726666).

22302212 is a wasteful number, since it uses less digits than its factorization.

22302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575557 (or 5575555 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22302212 is about 4722.5217839625. The cubic root of 22302212 is about 281.4811477878.

Adding to 22302212 its reverse (21220322), we get a palindrome (43522534).

The spelling of 22302212 in words is "twenty-two million, three hundred two thousand, two hundred twelve".