22105434025 has 24 divisors (see below), whose sum is σ = 27649652184. Its totient is φ = 17530867200.

The previous prime is 22105434019. The next prime is 22105434077. The reversal of 22105434025 is 52043450122.

It can be written as a sum of positive squares in 12 ways, for example, as 583696 + 22104850329 = 764^2 + 148677^2 .

It is not a de Polignac number, because 22105434025 - 2⁵ = 22105433993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22105433984 and 22105434002.

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 23 ways as a sum of consecutive naturals, for example, 1375939 + ... + 1391911.

It is an arithmetic number, because the mean of its divisors is an integer number (1152068841).

Almost surely, 2^22105434025 is an apocalyptic number.

22105434025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22105434025 is a deficient number, since it is larger than the sum of its proper divisors (5544218159).

22105434025 is a wasteful number, since it uses less digits than its factorization.

22105434025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16461 (or 16456 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22105434025 its reverse (52043450122), we get a palindrome (74148884147).

The spelling of 22105434025 in words is "twenty-two billion, one hundred five million, four hundred thirty-four thousand, twenty-five".