21110110012219 has 2 divisors, whose sum is σ = 21110110012220. Its totient is φ = 21110110012218.

The previous prime is 21110110012217. The next prime is 21110110012253. The reversal of 21110110012219 is 91221001101112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21110110012219 - 2¹ = 21110110012217 is a prime.

It is a super-2 number, since 2×21110110012219² (a number of 27 digits) contains 22 as substring.

Together with 21110110012217, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21110110012219.

It is not a weakly prime, because it can be changed into another prime (21110110012217) 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, 10555055006109 + 10555055006110.

It is an arithmetic number, because the mean of its divisors is an integer number (10555055006110).

Almost surely, 2^{21110110012219} is an apocalyptic number.

21110110012219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110110012219 is an equidigital number, since it uses as much as digits as its factorization.

21110110012219 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 22.

The spelling of 21110110012219 in words is "twenty-one trillion, one hundred ten billion, one hundred ten million, twelve thousand, two hundred nineteen".