11016021 has 4 divisors (see below), whose sum is σ = 14688032. Its totient is φ = 7344012.

The previous prime is 11015993. The next prime is 11016059. The reversal of 11016021 is 12061011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11016021 - 2⁵ = 11015989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11015988 and 11016006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11017021) 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 in 3 ways as a sum of consecutive naturals, for example, 1836001 + ... + 1836006.

It is an arithmetic number, because the mean of its divisors is an integer number (3672008).

Almost surely, 2^11016021 is an apocalyptic number.

It is an amenable number.

11016021 is a deficient number, since it is larger than the sum of its proper divisors (3672011).

11016021 is an equidigital number, since it uses as much as digits as its factorization.

11016021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672010.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 11016021 is about 3319.0391681931. The cubic root of 11016021 is about 222.5059275448.

Adding to 11016021 its reverse (12061011), we get a palindrome (23077032).

The spelling of 11016021 in words is "eleven million, sixteen thousand, twenty-one".