1223219 has 4 divisors (see below), whose sum is σ = 1241544. Its totient is φ = 1204896.

The previous prime is 1223207. The next prime is 1223231. The reversal of 1223219 is 9123221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9123221 = 61 ⋅149561.

It is an interprime number because it is at equal distance from previous prime (1223207) and next prime (1223231).

It is a cyclic number.

It is not a de Polignac number, because 1223219 - 2⁴ = 1223203 is a prime.

It is a super-2 number, since 2×1223219² = 2992529443922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223219.

It is not an unprimeable number, because it can be changed into a prime (1223279) 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, 9062 + ... + 9195.

It is an arithmetic number, because the mean of its divisors is an integer number (310386).

2^1223219 is an apocalyptic number.

1223219 is a deficient number, since it is larger than the sum of its proper divisors (18325).

1223219 is an equidigital number, since it uses as much as digits as its factorization.

1223219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18324.

The product of its digits is 216, while the sum is 20.

The square root of 1223219 is about 1105.9923146207. The cubic root of 1223219 is about 106.9468685470.

The spelling of 1223219 in words is "one million, two hundred twenty-three thousand, two hundred nineteen".