11226819 has 4 divisors (see below), whose sum is σ = 14969096. Its totient is φ = 7484544.

The previous prime is 11226791. The next prime is 11226821. The reversal of 11226819 is 91862211.

It is a happy number.

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

It is not a de Polignac number, because 11226819 - 2⁸ = 11226563 is a prime.

It is a super-2 number, since 2×11226819² = 252082929717522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11226869) 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, 1871134 + ... + 1871139.

It is an arithmetic number, because the mean of its divisors is an integer number (3742274).

Almost surely, 2^11226819 is an apocalyptic number.

11226819 is a deficient number, since it is larger than the sum of its proper divisors (3742277).

11226819 is an equidigital number, since it uses as much as digits as its factorization.

11226819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742276.

The product of its digits is 1728, while the sum is 30.

The square root of 11226819 is about 3350.6445648561. The cubic root of 11226819 is about 223.9162301027.

The spelling of 11226819 in words is "eleven million, two hundred twenty-six thousand, eight hundred nineteen".