11224861 has 4 divisors (see below), whose sum is σ = 11232000. Its totient is φ = 11217724.

The previous prime is 11224847. The next prime is 11224891. The reversal of 11224861 is 16842211.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16842211 = 409 ⋅41179.

It is a cyclic number.

It is not a de Polignac number, because 11224861 - 2⁹ = 11224349 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 (11224831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (2808000).

Almost surely, 2^11224861 is an apocalyptic number.

It is an amenable number.

11224861 is a deficient number, since it is larger than the sum of its proper divisors (7139).

11224861 is an equidigital number, since it uses as much as digits as its factorization.

11224861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138.

The product of its digits is 768, while the sum is 25.

The square root of 11224861 is about 3350.3523695277. The cubic root of 11224861 is about 223.9032120647.

The spelling of 11224861 in words is "eleven million, two hundred twenty-four thousand, eight hundred sixty-one".