1224204019 has 2 divisors, whose sum is σ = 1224204020. Its totient is φ = 1224204018.

The previous prime is 1224204011. The next prime is 1224204071. The reversal of 1224204019 is 9104024221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1224204019 - 2³ = 1224204011 is a prime.

It is a super-2 number, since 2×1224204019² = 2997350960271504722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1224203984 and 1224204002.

It is not a weakly prime, because it can be changed into another prime (1224204011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612102009 + 612102010.

It is an arithmetic number, because the mean of its divisors is an integer number (612102010).

Almost surely, 2^1224204019 is an apocalyptic number.

1224204019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224204019 is an equidigital number, since it uses as much as digits as its factorization.

1224204019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1224204019 is about 34988.6269950680. The cubic root of 1224204019 is about 1069.7556780503.

The spelling of 1224204019 in words is "one billion, two hundred twenty-four million, two hundred four thousand, nineteen".