111200121201211 has 16 divisors (see below), whose sum is σ = 127455939763200. Its totient is φ = 95036891414688.

The previous prime is 111200121201161. The next prime is 111200121201227. The reversal of 111200121201211 is 112102121002111.

It is a cyclic number.

It is not a de Polignac number, because 111200121201211 - 2¹³ = 111200121193019 is a prime.

It is a super-2 number, since 2×111200121201211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111200121201011) 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 15 ways as a sum of consecutive naturals, for example, 17146650 + ... + 22724608.

It is an arithmetic number, because the mean of its divisors is an integer number (7965996235200).

Almost surely, 2^{111200121201211} is an apocalyptic number.

111200121201211 is a deficient number, since it is larger than the sum of its proper divisors (16255818561989).

111200121201211 is an equidigital number, since it uses as much as digits as its factorization.

111200121201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586258.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 111200121201211 its reverse (112102121002111), we get a palindrome (223302242203322).

The spelling of 111200121201211 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty-one million, two hundred one thousand, two hundred eleven".