12118522 has 16 divisors (see below), whose sum is σ = 19700352. Its totient is φ = 5557680.

The previous prime is 12118487. The next prime is 12118529. The reversal of 12118522 is 22581121.

It is a junction number, because it is equal to n+sod(n) for n = 12118493 and 12118502.

It is not an unprimeable number, because it can be changed into a prime (12118529) 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, 2947 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (1231272).

Almost surely, 2^12118522 is an apocalyptic number.

12118522 is a deficient number, since it is larger than the sum of its proper divisors (7581830).

12118522 is a wasteful number, since it uses less digits than its factorization.

12118522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973.

The product of its digits is 320, while the sum is 22.

The square root of 12118522 is about 3481.1667584303. The cubic root of 12118522 is about 229.6941239579.

Adding to 12118522 its reverse (22581121), we get a palindrome (34699643).

The spelling of 12118522 in words is "twelve million, one hundred eighteen thousand, five hundred twenty-two".