811112211119 has 16 divisors (see below), whose sum is σ = 1001544840000. Its totient is φ = 654342619392.

The previous prime is 811112211113. The next prime is 811112211131. The reversal of 811112211119 is 911112211118.

It is not a de Polignac number, because 811112211119 - 2⁴ = 811112211103 is a prime.

It is a super-2 number, since 2×811112211119² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 811112211091 and 811112211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811112211113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69545894 + ... + 69557555.

It is an arithmetic number, because the mean of its divisors is an integer number (62596552500).

Almost surely, 2^811112211119 is an apocalyptic number.

811112211119 is a deficient number, since it is larger than the sum of its proper divisors (190432628881).

811112211119 is a wasteful number, since it uses less digits than its factorization.

811112211119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139103487 (or 139103473 counting only the distinct ones).

The product of its digits is 288, while the sum is 29.

Subtracting 811112211119 from its reverse (911112211118), we obtain a palindrome (99999999999).

The spelling of 811112211119 in words is "eight hundred eleven billion, one hundred twelve million, two hundred eleven thousand, one hundred nineteen".