11212199999 has 16 divisors (see below), whose sum is σ = 15054144000. Its totient is φ = 8064718560.

The previous prime is 11212199987. The next prime is 11212200007. The reversal of 11212199999 is 99999121211.

11212199999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11212199999 - 2⁴ = 11212199983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11212199999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212199399) 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 in 15 ways as a sum of consecutive naturals, for example, 5599499 + ... + 5601500.

It is an arithmetic number, because the mean of its divisors is an integer number (940884000).

Almost surely, 2^11212199999 is an apocalyptic number.

11212199999 is a deficient number, since it is larger than the sum of its proper divisors (3841944001).

11212199999 is a wasteful number, since it uses less digits than its factorization.

11212199999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201030.

The product of its digits is 236196, while the sum is 53.

The spelling of 11212199999 in words is "eleven billion, two hundred twelve million, one hundred ninety-nine thousand, nine hundred ninety-nine".