22223522 has 12 divisors (see below), whose sum is σ = 35412450. Its totient is φ = 10457856.

The previous prime is 22223519. The next prime is 22223533. The reversal of 22223522 is 22532222.

It can be written as a sum of positive squares in 3 ways, for example, as 18139081 + 4084441 = 4259^2 + 2021^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22223494 and 22223503.

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 in 5 ways as a sum of consecutive naturals, for example, 18647 + ... + 19802.

Almost surely, 2^22223522 is an apocalyptic number.

22223522 is a deficient number, since it is larger than the sum of its proper divisors (13188928).

22223522 is a wasteful number, since it uses less digits than its factorization.

22223522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38485 (or 38468 counting only the distinct ones).

The product of its digits is 960, while the sum is 20.

The square root of 22223522 is about 4714.1830681466. The cubic root of 22223522 is about 281.1497030356.

Adding to 22223522 its reverse (22532222), we get a palindrome (44755744).

The spelling of 22223522 in words is "twenty-two million, two hundred twenty-three thousand, five hundred twenty-two".