111100211122211 has 8 divisors (see below), whose sum is σ = 111616985236800. Its totient is φ = 110583711967680.

The previous prime is 111100211122207. The next prime is 111100211122213. The reversal of 111100211122211 is 112221112001111.

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 111100211122211 - 2² = 111100211122207 is a prime.

It is a super-2 number, since 2×111100211122211² (a number of 29 digits) contains 22 as substring.

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 111100211122211.

It is not an unprimeable number, because it can be changed into a prime (111100211122213) 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, 67929995 + ... + 69546276.

It is an arithmetic number, because the mean of its divisors is an integer number (13952123154600).

Almost surely, 2^{111100211122211} is an apocalyptic number.

111100211122211 is a deficient number, since it is larger than the sum of its proper divisors (516774114589).

111100211122211 is a wasteful number, since it uses less digits than its factorization.

111100211122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137480029.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111100211122211 its reverse (112221112001111), we get a palindrome (223321323123322).

The spelling of 111100211122211 in words is "one hundred eleven trillion, one hundred billion, two hundred eleven million, one hundred twenty-two thousand, two hundred eleven".