22066522 has 16 divisors (see below), whose sum is σ = 34644672. Its totient is φ = 10521280.

The previous prime is 22066501. The next prime is 22066523. The reversal of 22066522 is 22566022.

It is not an unprimeable number, because it can be changed into a prime (22066523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22098 + ... + 23074.

It is an arithmetic number, because the mean of its divisors is an integer number (2165292).

Almost surely, 2^22066522 is an apocalyptic number.

22066522 is a deficient number, since it is larger than the sum of its proper divisors (12578150).

22066522 is a wasteful number, since it uses less digits than its factorization.

22066522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 22066522 is about 4697.5016764233. The cubic root of 22066522 is about 280.4860689804.

Subtracting 22066522 from its reverse (22566022), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 22066522 in words is "twenty-two million, sixty-six thousand, five hundred twenty-two".