11213219999 has 2 divisors, whose sum is σ = 11213220000. Its totient is φ = 11213219998.

The previous prime is 11213219989. The next prime is 11213220023. The reversal of 11213219999 is 99991231211.

11213219999 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 a cyclic number.

It is not a de Polignac number, because 11213219999 - 2²⁰ = 11212171423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11213219959) 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, 5606609999 + 5606610000.

It is an arithmetic number, because the mean of its divisors is an integer number (5606610000).

Almost surely, 2^11213219999 is an apocalyptic number.

11213219999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213219999 is an equidigital number, since it uses as much as digits as its factorization.

11213219999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 47.

The spelling of 11213219999 in words is "eleven billion, two hundred thirteen million, two hundred nineteen thousand, nine hundred ninety-nine".