11216015 has 4 divisors (see below), whose sum is σ = 13459224. Its totient is φ = 8972808.

The previous prime is 11216003. The next prime is 11216057. The reversal of 11216015 is 51061211.

11216015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51061211 = 199 ⋅256589.

It is a cyclic number.

It is not a de Polignac number, because 11216015 - 2⁶ = 11215951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11215984 and 11216002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121597 + ... + 1121606.

It is an arithmetic number, because the mean of its divisors is an integer number (3364806).

Almost surely, 2^11216015 is an apocalyptic number.

11216015 is a deficient number, since it is larger than the sum of its proper divisors (2243209).

11216015 is an equidigital number, since it uses as much as digits as its factorization.

11216015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243208.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 11216015 is about 3349.0319496834. The cubic root of 11216015 is about 223.8443793142.

Adding to 11216015 its reverse (51061211), we get a palindrome (62277226).

The spelling of 11216015 in words is "eleven million, two hundred sixteen thousand, fifteen".