22551310205 has 4 divisors (see below), whose sum is σ = 27061572252. Its totient is φ = 18041048160.

The previous prime is 22551310193. The next prime is 22551310219. The reversal of 22551310205 is 50201315522.

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 12657825049 + 9893485156 = 112507^2 + 99466^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22551310205 is a prime.

It is a Duffinian number.

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, 2255131016 + ... + 2255131025.

It is an arithmetic number, because the mean of its divisors is an integer number (6765393063).

Almost surely, 2^22551310205 is an apocalyptic number.

It is an amenable number.

22551310205 is a deficient number, since it is larger than the sum of its proper divisors (4510262047).

22551310205 is an equidigital number, since it uses as much as digits as its factorization.

22551310205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510262046.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 22551310205 its reverse (50201315522), we get a palindrome (72752625727).

The spelling of 22551310205 in words is "twenty-two billion, five hundred fifty-one million, three hundred ten thousand, two hundred five".