111020120212211 has 32 divisors (see below), whose sum is σ = 135924447403008. Its totient is φ = 88623576961920.

The previous prime is 111020120212171. The next prime is 111020120212229. The reversal of 111020120212211 is 112212021020111.

It is not a de Polignac number, because 111020120212211 - 2¹⁸ = 111020119950067 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 111020120212211.

It is not an unprimeable number, because it can be changed into a prime (111020120212241) 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 31 ways as a sum of consecutive naturals, for example, 48541256 + ... + 50776901.

It is an arithmetic number, because the mean of its divisors is an integer number (4247638981344).

Almost surely, 2^{111020120212211} is an apocalyptic number.

111020120212211 is a deficient number, since it is larger than the sum of its proper divisors (24904327190797).

111020120212211 is a wasteful number, since it uses less digits than its factorization.

111020120212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99318371.

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

Adding to 111020120212211 its reverse (112212021020111), we get a palindrome (223232141232322).

The spelling of 111020120212211 in words is "one hundred eleven trillion, twenty billion, one hundred twenty million, two hundred twelve thousand, two hundred eleven".