11218612 has 12 divisors (see below), whose sum is σ = 19869696. Its totient is φ = 5541560.

The previous prime is 11218609. The next prime is 11218619. The reversal of 11218612 is 21681211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11218619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16564 + ... + 17227.

It is an arithmetic number, because the mean of its divisors is an integer number (1655808).

Almost surely, 2^11218612 is an apocalyptic number.

It is an amenable number.

11218612 is a deficient number, since it is larger than the sum of its proper divisors (8651084).

11218612 is a wasteful number, since it uses less digits than its factorization.

11218612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33878 (or 33876 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

The square root of 11218612 is about 3349.4196512232. The cubic root of 11218612 is about 223.8616545821.

Adding to 11218612 its reverse (21681211), we get a palindrome (32899823).

The spelling of 11218612 in words is "eleven million, two hundred eighteen thousand, six hundred twelve".