111210221099 has 8 divisors (see below), whose sum is σ = 113581163520. Its totient is φ = 108839477416.

The previous prime is 111210221093. The next prime is 111210221113. The reversal of 111210221099 is 990122012111.

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 111210221099 - 2⁸ = 111210220843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210221093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834142 + ... + 1893804.

It is an arithmetic number, because the mean of its divisors is an integer number (14197645440).

Almost surely, 2^111210221099 is an apocalyptic number.

111210221099 is a deficient number, since it is larger than the sum of its proper divisors (2370942421).

111210221099 is an equidigital number, since it uses as much as digits as its factorization.

111210221099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99369.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 111210221099 in words is "one hundred eleven billion, two hundred ten million, two hundred twenty-one thousand, ninety-nine".