11211221122219 has 2 divisors, whose sum is σ = 11211221122220. Its totient is φ = 11211221122218.

The previous prime is 11211221122207. The next prime is 11211221122271. The reversal of 11211221122219 is 91222112211211.

It is a weak prime.

It is an emirp because it is prime and its reverse (91222112211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211221122219 - 2³⁵ = 11176861383851 is a prime.

It is a super-2 number, since 2×11211221122219² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11211221122019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605610561109 + 5605610561110.

It is an arithmetic number, because the mean of its divisors is an integer number (5605610561110).

Almost surely, 2^{11211221122219} is an apocalyptic number.

11211221122219 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211221122219 is an equidigital number, since it uses as much as digits as its factorization.

11211221122219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 28.

The spelling of 11211221122219 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred nineteen".