22201210205 has 4 divisors (see below), whose sum is σ = 26641452252. Its totient is φ = 17760968160.

The previous prime is 22201210181. The next prime is 22201210211. The reversal of 22201210205 is 50201210222.

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 17215014436 + 4986195769 = 131206^2 + 70613^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22201210205 is a prime.

It is a super-2 number, since 2×22201210205² (a number of 21 digits) contains 22 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220121016 + ... + 2220121025.

It is an arithmetic number, because the mean of its divisors is an integer number (6660363063).

Almost surely, 2^22201210205 is an apocalyptic number.

It is an amenable number.

22201210205 is a deficient number, since it is larger than the sum of its proper divisors (4440242047).

22201210205 is an equidigital number, since it uses as much as digits as its factorization.

22201210205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440242046.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 22201210205 its sum of digits (17), we get a palindrome (22201210222).

Adding to 22201210205 its reverse (50201210222), we get a palindrome (72402420427).

The spelling of 22201210205 in words is "twenty-two billion, two hundred one million, two hundred ten thousand, two hundred five".