11021618 has 8 divisors (see below), whose sum is σ = 16693248. Its totient is φ = 5457204.

The previous prime is 11021617. The next prime is 11021639. The reversal of 11021618 is 81612011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11021618.

It is not an unprimeable number, because it can be changed into a prime (11021611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26546 + ... + 26957.

It is an arithmetic number, because the mean of its divisors is an integer number (2086656).

Almost surely, 2^11021618 is an apocalyptic number.

11021618 is a deficient number, since it is larger than the sum of its proper divisors (5671630).

11021618 is a wasteful number, since it uses less digits than its factorization.

11021618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53608.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 11021618 is about 3319.8822268267. The cubic root of 11021618 is about 222.5436046341.

Adding to 11021618 its reverse (81612011), we get a palindrome (92633629).

The spelling of 11021618 in words is "eleven million, twenty-one thousand, six hundred eighteen".