222504100505 has 8 divisors (see below), whose sum is σ = 271382050824. Its totient is φ = 175085193600.

The previous prime is 222504100487. The next prime is 222504100531. The reversal of 222504100505 is 505001405222.

222504100505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7717271104 + 214786829401 = 87848^2 + 463451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222504100505 - 2¹⁶ = 222504034969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 364760516 + ... + 364761125.

It is an arithmetic number, because the mean of its divisors is an integer number (33922756353).

Almost surely, 2^222504100505 is an apocalyptic number.

It is an amenable number.

222504100505 is a deficient number, since it is larger than the sum of its proper divisors (48877950319).

222504100505 is an equidigital number, since it uses as much as digits as its factorization.

222504100505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729521707.

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 222504100505 its reverse (505001405222), we get a palindrome (727505505727).

The spelling of 222504100505 in words is "two hundred twenty-two billion, five hundred four million, one hundred thousand, five hundred five".