11122219 has 2 divisors, whose sum is σ = 11122220.
Its totient is φ = 11122218.
The previous prime is 11122217. The next prime is 11122229. The reversal of 11122219 is 91222111.
It is a happy number.
11122219 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is an emirp because it is prime and its reverse (91222111) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 11122219 - 21 = 11122217 is a prime.
It is a super-2 number, since 2×111222192 = 247407510967922, which contains 22 as substring.
Together with 11122217, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 11122196 and 11122205.
It is not a weakly prime, because it can be changed into another prime (11122217) 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 as a sum of consecutive naturals, namely, 5561109 + 5561110.
It is an arithmetic number, because the mean of its divisors is an integer number (5561110).
Almost surely, 211122219 is an apocalyptic number.
11122219 is a deficient number, since it is larger than the sum of its proper divisors (1).
11122219 is an equidigital number, since it uses as much as digits as its factorization.
11122219 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 72, while the sum is 19.
The square root of 11122219 is about 3334.9991004497.
Note that the first 3 decimals coincide.
The cubic root of 11122219 is about 223.2186517967.
The spelling of 11122219 in words is "eleven million, one hundred twenty-two thousand, two hundred nineteen".