505322220011 has 4 divisors (see below), whose sum is σ = 577511108592. Its totient is φ = 433133331432.

The previous prime is 505322220001. The next prime is 505322220043. The reversal of 505322220011 is 110022223505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505322220011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505322220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36094444280 + ... + 36094444293.

It is an arithmetic number, because the mean of its divisors is an integer number (144377777148).

Almost surely, 2^505322220011 is an apocalyptic number.

505322220011 is a deficient number, since it is larger than the sum of its proper divisors (72188888581).

505322220011 is an equidigital number, since it uses as much as digits as its factorization.

505322220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72188888580.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 505322220011 its reverse (110022223505), we get a palindrome (615344443516).

The spelling of 505322220011 in words is "five hundred five billion, three hundred twenty-two million, two hundred twenty thousand, eleven".