1105722011 has 4 divisors (see below), whose sum is σ = 1108141992. Its totient is φ = 1103302032.

The previous prime is 1105722001. The next prime is 1105722019. The reversal of 1105722011 is 1102275011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1105722011 - 2³⁰ = 31980187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105722019) 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 3 ways as a sum of consecutive naturals, for example, 1209305 + ... + 1210218.

It is an arithmetic number, because the mean of its divisors is an integer number (277035498).

Almost surely, 2^1105722011 is an apocalyptic number.

1105722011 is a deficient number, since it is larger than the sum of its proper divisors (2419981).

1105722011 is an equidigital number, since it uses as much as digits as its factorization.

1105722011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419980.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 1105722011 is about 33252.3985751404. The cubic root of 1105722011 is about 1034.0669353838.

Adding to 1105722011 its reverse (1102275011), we get a palindrome (2207997022).

The spelling of 1105722011 in words is "one billion, one hundred five million, seven hundred twenty-two thousand, eleven".