22180522 has 32 divisors (see below), whose sum is σ = 41836032. Its totient is φ = 8584704.

The previous prime is 22180517. The next prime is 22180547. The reversal of 22180522 is 22508122.

It is a junction number, because it is equal to n+sod(n) for n = 22180493 and 22180502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7258 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (1307376).

Almost surely, 2^22180522 is an apocalyptic number.

22180522 is a deficient number, since it is larger than the sum of its proper divisors (19655510).

22180522 is a wasteful number, since it uses less digits than its factorization.

22180522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 22180522 is about 4709.6201545348. The cubic root of 22180522 is about 280.9682550056.

Adding to 22180522 its reverse (22508122), we get a palindrome (44688644).

The spelling of 22180522 in words is "twenty-two million, one hundred eighty thousand, five hundred twenty-two".