22222322 has 4 divisors (see below), whose sum is σ = 33333486. Its totient is φ = 11111160.

The previous prime is 22222273. The next prime is 22222327. The reversal of 22222322 is 22322222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21446161 + 776161 = 4631^2 + 881^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22222322.

It is not an unprimeable number, because it can be changed into a prime (22222327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555579 + ... + 5555582.

Almost surely, 2^22222322 is an apocalyptic number.

22222322 is a deficient number, since it is larger than the sum of its proper divisors (11111164).

22222322 is a wasteful number, since it uses less digits than its factorization.

22222322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111163.

The product of its digits is 384, while the sum is 17.

The square root of 22222322 is about 4714.0557909299. The cubic root of 22222322 is about 281.1446425458.

Adding to 22222322 its reverse (22322222), we get a palindrome (44544544).

The spelling of 22222322 in words is "twenty-two million, two hundred twenty-two thousand, three hundred twenty-two".