1100220005 has 4 divisors (see below), whose sum is σ = 1320264012. Its totient is φ = 880176000.

The previous prime is 1100219993. The next prime is 1100220007. The reversal of 1100220005 is 5000220011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 472366756 + 627853249 = 21734^2 + 25057^2 .

It is not a de Polignac number, because 1100220005 - 2⁸ = 1100219749 is a prime.

It is a super-3 number, since 3×1100220005³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100220007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110021996 + ... + 110022005.

It is an arithmetic number, because the mean of its divisors is an integer number (330066003).

Almost surely, 2^1100220005 is an apocalyptic number.

It is an amenable number.

1100220005 is a deficient number, since it is larger than the sum of its proper divisors (220044007).

1100220005 is an equidigital number, since it uses as much as digits as its factorization.

1100220005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220044006.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1100220005 is about 33169.5644379000. The cubic root of 1100220005 is about 1032.3489311072.

Adding to 1100220005 its reverse (5000220011), we get a palindrome (6100440016).

The spelling of 1100220005 in words is "one billion, one hundred million, two hundred twenty thousand, five".