111102220120985 has 8 divisors (see below), whose sum is σ = 133449759160200. Its totient is φ = 88797046086784.

The previous prime is 111102220120967. The next prime is 111102220120999. The reversal of 111102220120985 is 589021022201111.

It can be written as a sum of positive squares in 4 ways, for example, as 53768005332889 + 57334214788096 = 7332667^2 + 7571936^2 .

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 111102220120985 - 2³⁸ = 110827342214041 is a prime.

It is an unprimeable number.

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, 10591245482 + ... + 10591255971.

It is an arithmetic number, because the mean of its divisors is an integer number (16681219895025).

Almost surely, 2^{111102220120985} is an apocalyptic number.

It is an amenable number.

111102220120985 is a deficient number, since it is larger than the sum of its proper divisors (22347539039215).

111102220120985 is a wasteful number, since it uses less digits than its factorization.

111102220120985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21182502507.

The product of its (nonzero) digits is 5760, while the sum is 35.

The spelling of 111102220120985 in words is "one hundred eleven trillion, one hundred two billion, two hundred twenty million, one hundred twenty thousand, nine hundred eighty-five".