12016522 has 16 divisors (see below), whose sum is σ = 21079872. Its totient is φ = 5029920.

The previous prime is 12016507. The next prime is 12016541. The reversal of 12016522 is 22561021.

It is a self number, because there is not a number n which added to its sum of digits gives 12016522.

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, 9379 + ... + 10582.

It is an arithmetic number, because the mean of its divisors is an integer number (1317492).

Almost surely, 2^12016522 is an apocalyptic number.

12016522 is a deficient number, since it is larger than the sum of its proper divisors (9063350).

12016522 is a wasteful number, since it uses less digits than its factorization.

12016522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20013.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12016522 is about 3466.4855401400. The cubic root of 12016522 is about 229.0478723737.

Adding to 12016522 its reverse (22561021), we get a palindrome (34577543).

The spelling of 12016522 in words is "twelve million, sixteen thousand, five hundred twenty-two".