22212012303205 has 4 divisors (see below), whose sum is σ = 26654414763852. Its totient is φ = 17769609842560.

The previous prime is 22212012303161. The next prime is 22212012303233. The reversal of 22212012303205 is 50230321021222.

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 4924520203876 + 17287492099329 = 2219126^2 + 4157823^2 .

It is not a de Polignac number, because 22212012303205 - 2³¹ = 22209864819557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22212012303205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2221201230316 + ... + 2221201230325.

It is an arithmetic number, because the mean of its divisors is an integer number (6663603690963).

Almost surely, 2^{22212012303205} is an apocalyptic number.

It is an amenable number.

22212012303205 is a deficient number, since it is larger than the sum of its proper divisors (4442402460647).

22212012303205 is an equidigital number, since it uses as much as digits as its factorization.

22212012303205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442402460646.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 22212012303205 its reverse (50230321021222), we get a palindrome (72442333324427).

The spelling of 22212012303205 in words is "twenty-two trillion, two hundred twelve billion, twelve million, three hundred three thousand, two hundred five".