1112211011 has 4 divisors (see below), whose sum is σ = 1112285712. Its totient is φ = 1112136312.

The previous prime is 1112210927. The next prime is 1112211013. The reversal of 1112211011 is 1101122111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1101122111 = 2803 ⋅392837.

It is a cyclic number.

It is not a de Polignac number, because 1112211011 - 2²⁶ = 1045102147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112210983 and 1112211001.

It is not an unprimeable number, because it can be changed into a prime (1112211013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6551 + ... + 47616.

It is an arithmetic number, because the mean of its divisors is an integer number (278071428).

Almost surely, 2^1112211011 is an apocalyptic number.

1112211011 is a deficient number, since it is larger than the sum of its proper divisors (74701).

1112211011 is an equidigital number, since it uses as much as digits as its factorization.

1112211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74700.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 1112211011 is about 33349.8277506796. The cubic root of 1112211011 is about 1036.0858204101.

Adding to 1112211011 its reverse (1101122111), we get a palindrome (2213333122).

Subtracting from 1112211011 its reverse (1101122111), we obtain a square (11088900 = 3330²).

It can be divided in two parts, 111 and 2211011, that added together give a palindrome (2211122).

The spelling of 1112211011 in words is "one billion, one hundred twelve million, two hundred eleven thousand, eleven".