22122244205 has 4 divisors (see below), whose sum is σ = 26546693052. Its totient is φ = 17697795360.

The previous prime is 22122244187. The next prime is 22122244237. The reversal of 22122244205 is 50244222122.

It is a happy number.

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 14651407849 + 7470836356 = 121043^2 + 86434^2 .

It is not a de Polignac number, because 22122244205 - 2¹⁶ = 22122178669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212224416 + ... + 2212224425.

It is an arithmetic number, because the mean of its divisors is an integer number (6636673263).

Almost surely, 2^22122244205 is an apocalyptic number.

It is an amenable number.

22122244205 is a deficient number, since it is larger than the sum of its proper divisors (4424448847).

22122244205 is an equidigital number, since it uses as much as digits as its factorization.

22122244205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424448846.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 22122244205 its reverse (50244222122), we get a palindrome (72366466327).

The spelling of 22122244205 in words is "twenty-two billion, one hundred twenty-two million, two hundred forty-four thousand, two hundred five".