11021518 has 4 divisors (see below), whose sum is σ = 16532280. Its totient is φ = 5510758.

The previous prime is 11021489. The next prime is 11021519. The reversal of 11021518 is 81512011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 11021495 and 11021504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755378 + ... + 2755381.

It is an arithmetic number, because the mean of its divisors is an integer number (4133070).

Almost surely, 2^11021518 is an apocalyptic number.

11021518 is a deficient number, since it is larger than the sum of its proper divisors (5510762).

11021518 is an equidigital number, since it uses as much as digits as its factorization.

11021518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510761.

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 11021518 is about 3319.8671660173. The cubic root of 11021518 is about 222.5429315803.

Adding to 11021518 its reverse (81512011), we get a palindrome (92533529).

The spelling of 11021518 in words is "eleven million, twenty-one thousand, five hundred eighteen".