1011112121219 has 2 divisors, whose sum is σ = 1011112121220. Its totient is φ = 1011112121218.

The previous prime is 1011112121207. The next prime is 1011112121221. The reversal of 1011112121219 is 9121212111101.

It is a strong prime.

It is an emirp because it is prime and its reverse (9121212111101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011112121219 - 2¹⁶ = 1011112055683 is a prime.

It is a super-3 number, since 3×1011112121219³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1011112121221, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011112121194 and 1011112121203.

It is not a weakly prime, because it can be changed into another prime (1011112121819) 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, 505556060609 + 505556060610.

It is an arithmetic number, because the mean of its divisors is an integer number (505556060610).

Almost surely, 2^{1011112121219} is an apocalyptic number.

1011112121219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011112121219 is an equidigital number, since it uses as much as digits as its factorization.

1011112121219 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 23.

The spelling of 1011112121219 in words is "one trillion, eleven billion, one hundred twelve million, one hundred twenty-one thousand, two hundred nineteen".