22166224 has 10 divisors (see below), whose sum is σ = 42947090. Its totient is φ = 11083104.

The previous prime is 22166201. The next prime is 22166233. The reversal of 22166224 is 42266122.

It can be written as a sum of positive squares in only one way, i.e., 20866624 + 1299600 = 4568^2 + 1140^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 692679 + ... + 692710.

It is an arithmetic number, because the mean of its divisors is an integer number (4294709).

Almost surely, 2^22166224 is an apocalyptic number.

It is an amenable number.

22166224 is a deficient number, since it is larger than the sum of its proper divisors (20780866).

22166224 is a wasteful number, since it uses less digits than its factorization.

22166224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385397 (or 1385391 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 22166224 is about 4708.1019530167. The cubic root of 22166224 is about 280.9078694772.

The spelling of 22166224 in words is "twenty-two million, one hundred sixty-six thousand, two hundred twenty-four".