22022522 has 8 divisors (see below), whose sum is σ = 33066900. Its totient is φ = 11000224.

The previous prime is 22022509. The next prime is 22022543. The reversal of 22022522 is 22522022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17230801 + 4791721 = 4151^2 + 2189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22022522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747 + ... + 7182.

Almost surely, 2^22022522 is an apocalyptic number.

22022522 is a deficient number, since it is larger than the sum of its proper divisors (11044378).

22022522 is a wasteful number, since it uses less digits than its factorization.

22022522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11040.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22022522 is about 4692.8159989499. The cubic root of 22022522 is about 280.2995179247.

Adding to 22022522 its reverse (22522022), we get a palindrome (44544544).

Subtracting 22022522 from its reverse (22522022), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 22022522 in words is "twenty-two million, twenty-two thousand, five hundred twenty-two".