212011110001819 has 2 divisors, whose sum is σ = 212011110001820. Its totient is φ = 212011110001818.

The previous prime is 212011110001771. The next prime is 212011110001891. The reversal of 212011110001819 is 918100011110212.

Together with next prime (212011110001891) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212011110001819 - 2³³ = 212002520067227 is a prime.

It is a super-2 number, since 2×212011110001819² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212011110301819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005555000909 + 106005555000910.

It is an arithmetic number, because the mean of its divisors is an integer number (106005555000910).

Almost surely, 2^{212011110001819} is an apocalyptic number.

212011110001819 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011110001819 is an equidigital number, since it uses as much as digits as its factorization.

212011110001819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 28.

The spelling of 212011110001819 in words is "two hundred twelve trillion, eleven billion, one hundred ten million, one thousand, eight hundred nineteen".