19112212945499 has 2 divisors, whose sum is σ = 19112212945500. Its totient is φ = 19112212945498.

The previous prime is 19112212945477. The next prime is 19112212945571. The reversal of 19112212945499 is 99454921221191.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19112212945499 is a prime.

It is not a weakly prime, because it can be changed into another prime (19112212945999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9556106472749 + 9556106472750.

It is an arithmetic number, because the mean of its divisors is an integer number (9556106472750).

Almost surely, 2^{19112212945499} is an apocalyptic number.

19112212945499 is a deficient number, since it is larger than the sum of its proper divisors (1).

19112212945499 is an equidigital number, since it uses as much as digits as its factorization.

19112212945499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 59.

The spelling of 19112212945499 in words is "nineteen trillion, one hundred twelve billion, two hundred twelve million, nine hundred forty-five thousand, four hundred ninety-nine".