10811218 has 32 divisors (see below), whose sum is σ = 18957888. Its totient is φ = 4569600.

The previous prime is 10811197. The next prime is 10811221. The reversal of 10811218 is 81211801.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 51133 + ... + 51343.

It is an arithmetic number, because the mean of its divisors is an integer number (592434).

Almost surely, 2^10811218 is an apocalyptic number.

10811218 is a deficient number, since it is larger than the sum of its proper divisors (8146670).

10811218 is a wasteful number, since it uses less digits than its factorization.

10811218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 128, while the sum is 22.

The square root of 10811218 is about 3288.0416664027. The cubic root of 10811218 is about 221.1183957788.

The spelling of 10811218 in words is "ten million, eight hundred eleven thousand, two hundred eighteen".