22164322 has 4 divisors (see below), whose sum is σ = 33246486. Its totient is φ = 11082160.

The previous prime is 22164253. The next prime is 22164343. The reversal of 22164322 is 22346122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22346122 = 2 ⋅11173061.

It can be written as a sum of positive squares in only one way, i.e., 14814801 + 7349521 = 3849^2 + 2711^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 22164293 and 22164302.

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, 5541079 + ... + 5541082.

Almost surely, 2^22164322 is an apocalyptic number.

22164322 is a deficient number, since it is larger than the sum of its proper divisors (11082164).

22164322 is a wasteful number, since it uses less digits than its factorization.

22164322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11082163.

The product of its digits is 1152, while the sum is 22.

The square root of 22164322 is about 4707.8999564562. The cubic root of 22164322 is about 280.8998346995.

The spelling of 22164322 in words is "twenty-two million, one hundred sixty-four thousand, three hundred twenty-two".