22244322505 has 4 divisors (see below), whose sum is σ = 26693187012. Its totient is φ = 17795458000.

The previous prime is 22244322473. The next prime is 22244322533. The reversal of 22244322505 is 50522344222.

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 13493842569 + 8750479936 = 116163^2 + 93544^2 .

It is not a de Polignac number, because 22244322505 - 2⁵ = 22244322473 is a prime.

It is a Duffinian 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, 2224432246 + ... + 2224432255.

It is an arithmetic number, because the mean of its divisors is an integer number (6673296753).

Almost surely, 2^22244322505 is an apocalyptic number.

It is an amenable number.

22244322505 is a deficient number, since it is larger than the sum of its proper divisors (4448864507).

22244322505 is an equidigital number, since it uses as much as digits as its factorization.

22244322505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448864506.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 22244322505 its reverse (50522344222), we get a palindrome (72766666727).

The spelling of 22244322505 in words is "twenty-two billion, two hundred forty-four million, three hundred twenty-two thousand, five hundred five".