21111120112219 has 2 divisors, whose sum is σ = 21111120112220. Its totient is φ = 21111120112218.

The previous prime is 21111120112177. The next prime is 21111120112223. The reversal of 21111120112219 is 91221102111112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21111120112219 is a prime.

It is a super-2 number, since 2×21111120112219² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21111120112193 and 21111120112202.

It is not a weakly prime, because it can be changed into another prime (21111120112249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555560056109 + 10555560056110.

It is an arithmetic number, because the mean of its divisors is an integer number (10555560056110).

Almost surely, 2^{21111120112219} is an apocalyptic number.

21111120112219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21111120112219 is an equidigital number, since it uses as much as digits as its factorization.

21111120112219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 21111120112219 in words is "twenty-one trillion, one hundred eleven billion, one hundred twenty million, one hundred twelve thousand, two hundred nineteen".