1232189219 has 2 divisors, whose sum is σ = 1232189220. Its totient is φ = 1232189218.

The previous prime is 1232189173. The next prime is 1232189221. The reversal of 1232189219 is 9129812321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1232189219 - 2²⁰ = 1231140643 is a prime.

It is a super-2 number, since 2×1232189219² = 3036580542839659922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1232189221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1232189279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616094609 + 616094610.

It is an arithmetic number, because the mean of its divisors is an integer number (616094610).

Almost surely, 2^1232189219 is an apocalyptic number.

1232189219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232189219 is an equidigital number, since it uses as much as digits as its factorization.

1232189219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 38.

The square root of 1232189219 is about 35102.5528843701. The cubic root of 1232189219 is about 1072.0765621949.

The spelling of 1232189219 in words is "one billion, two hundred thirty-two million, one hundred eighty-nine thousand, two hundred nineteen".