11219071 has 4 divisors (see below), whose sum is σ = 11231200. Its totient is φ = 11206944.

The previous prime is 11219051. The next prime is 11219077. The reversal of 11219071 is 17091211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17091211 = 211 ⋅81001.

It is a cyclic number.

It is not a de Polignac number, because 11219071 - 2⁷ = 11218943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11219077) 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, 4551 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (2807800).

Almost surely, 2^11219071 is an apocalyptic number.

11219071 is a deficient number, since it is larger than the sum of its proper divisors (12129).

11219071 is a wasteful number, since it uses less digits than its factorization.

11219071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12128.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 11219071 is about 3349.4881698552. The cubic root of 11219071 is about 223.8647075771.

The spelling of 11219071 in words is "eleven million, two hundred nineteen thousand, seventy-one".