111120220021211 has 8 divisors (see below), whose sum is σ = 111128013899280. Its totient is φ = 111112426474912.

The previous prime is 111120220021207. The next prime is 111120220021229. The reversal of 111120220021211 is 112120022021111.

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 111120220021211 - 2² = 111120220021207 is a prime.

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 111120220021211.

It is not an unprimeable number, because it can be changed into a prime (111120220021411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135812845 + ... + 1135910673.

It is an arithmetic number, because the mean of its divisors is an integer number (13891001737410).

Almost surely, 2^{111120220021211} is an apocalyptic number.

111120220021211 is a deficient number, since it is larger than the sum of its proper divisors (7793878069).

111120220021211 is an equidigital number, since it uses as much as digits as its factorization.

111120220021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165885.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111120220021211 its reverse (112120022021111), we get a palindrome (223240242042322).

The spelling of 111120220021211 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty million, twenty-one thousand, two hundred eleven".