1112212019 has 2 divisors, whose sum is σ = 1112212020. Its totient is φ = 1112212018.

The previous prime is 1112212001. The next prime is 1112212033. The reversal of 1112212019 is 9102122111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1112212019 - 2¹² = 1112207923 is a prime.

It is a super-2 number, since 2×1112212019² = 2474031150416112722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1112211019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556106009 + 556106010.

It is an arithmetic number, because the mean of its divisors is an integer number (556106010).

Almost surely, 2^1112212019 is an apocalyptic number.

1112212019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112212019 is an equidigital number, since it uses as much as digits as its factorization.

1112212019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1112212019 is about 33349.8428631980. The cubic root of 1112212019 is about 1036.0861334125.

The spelling of 1112212019 in words is "one billion, one hundred twelve million, two hundred twelve thousand, nineteen".