22521022 has 16 divisors (see below), whose sum is σ = 36005040. Its totient is φ = 10528128.

The previous prime is 22520999. The next prime is 22521041. The reversal of 22521022 is 22012522.

It is a junction number, because it is equal to n+sod(n) for n = 22520987 and 22521005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3229 + ... + 7447.

It is an arithmetic number, because the mean of its divisors is an integer number (2250315).

Almost surely, 2^22521022 is an apocalyptic number.

22521022 is a deficient number, since it is larger than the sum of its proper divisors (13484018).

22521022 is a wasteful number, since it uses less digits than its factorization.

22521022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22521022 is about 4745.6318862718. The cubic root of 22521022 is about 282.3987033381.

Adding to 22521022 its reverse (22012522), we get a palindrome (44533544).

The spelling of 22521022 in words is "twenty-two million, five hundred twenty-one thousand, twenty-two".