11212321099 has 8 divisors (see below), whose sum is σ = 12815480288. Its totient is φ = 9609511680.

The previous prime is 11212321091. The next prime is 11212321147. The reversal of 11212321099 is 99012321211.

11212321099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212321099 - 2³ = 11212321091 is a prime.

It is a super-2 number, since 2×11212321099² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212321099.

It is not an unprimeable number, because it can be changed into a prime (11212321091) 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 7 ways as a sum of consecutive naturals, for example, 14712 + ... + 150469.

It is an arithmetic number, because the mean of its divisors is an integer number (1601935036).

Almost surely, 2^11212321099 is an apocalyptic number.

11212321099 is a deficient number, since it is larger than the sum of its proper divisors (1603159189).

11212321099 is an equidigital number, since it uses as much as digits as its factorization.

11212321099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174885.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 11212321099 in words is "eleven billion, two hundred twelve million, three hundred twenty-one thousand, ninety-nine".