22205035205525 has 12 divisors (see below), whose sum is σ = 28205810574564. Its totient is φ = 17330759184000.

The previous prime is 22205035205477. The next prime is 22205035205527. The reversal of 22205035205525 is 52550253050222.

It can be written as a sum of positive squares in 6 ways, for example, as 7826688854884 + 14378346350641 = 2797622^2 + 3791879^2 .

It is not a de Polignac number, because 22205035205525 - 2²⁴ = 22205018428309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22205035205527) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10831723466 + ... + 10831725515.

It is an arithmetic number, because the mean of its divisors is an integer number (2350484214547).

Almost surely, 2^{22205035205525} is an apocalyptic number.

22205035205525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22205035205525 is a deficient number, since it is larger than the sum of its proper divisors (6000775369039).

22205035205525 is a wasteful number, since it uses less digits than its factorization.

22205035205525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21663449032 (or 21663449027 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 38.

Adding to 22205035205525 its reverse (52550253050222), we get a palindrome (74755288255747).

The spelling of 22205035205525 in words is "twenty-two trillion, two hundred five billion, thirty-five million, two hundred five thousand, five hundred twenty-five".