11221421219 has 2 divisors, whose sum is σ = 11221421220. Its totient is φ = 11221421218.

The previous prime is 11221421209. The next prime is 11221421249. The reversal of 11221421219 is 91212412211.

11221421219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (91212412211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11221421219 - 2⁴ = 11221421203 is a prime.

It is a super-2 number, since 2×11221421219² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11221421209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610710609 + 5610710610.

It is an arithmetic number, because the mean of its divisors is an integer number (5610710610).

Almost surely, 2^11221421219 is an apocalyptic number.

11221421219 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221421219 is an equidigital number, since it uses as much as digits as its factorization.

11221421219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 26.

The spelling of 11221421219 in words is "eleven billion, two hundred twenty-one million, four hundred twenty-one thousand, two hundred nineteen".