1212330019 has 2 divisors, whose sum is σ = 1212330020. Its totient is φ = 1212330018.

The previous prime is 1212330011. The next prime is 1212330037. The reversal of 1212330019 is 9100332121.

It is a weak prime.

It is an emirp because it is prime and its reverse (9100332121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212330019 - 2³ = 1212330011 is a prime.

It is a super-2 number, since 2×1212330019² = 2939488149937080722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212330011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606165009 + 606165010.

It is an arithmetic number, because the mean of its divisors is an integer number (606165010).

Almost surely, 2^1212330019 is an apocalyptic number.

1212330019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212330019 is an equidigital number, since it uses as much as digits as its factorization.

1212330019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1212330019 is about 34818.5298224954. The cubic root of 1212330019 is about 1066.2857853776.

The spelling of 1212330019 in words is "one billion, two hundred twelve million, three hundred thirty thousand, nineteen".