22105043425 has 6 divisors (see below), whose sum is σ = 27410253878. Its totient is φ = 17684034720.

The previous prime is 22105043417. The next prime is 22105043461. The reversal of 22105043425 is 52434050122.

It can be written as a sum of positive squares in 3 ways, for example, as 6491041489 + 15614001936 = 80567^2 + 124956^2 .

It is not a de Polignac number, because 22105043425 - 2³ = 22105043417 is a prime.

It is a super-2 number, since 2×22105043425² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22105043393 and 22105043402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442100844 + ... + 442100893.

Almost surely, 2^22105043425 is an apocalyptic number.

22105043425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22105043425 is a deficient number, since it is larger than the sum of its proper divisors (5305210453).

22105043425 is an equidigital number, since it uses as much as digits as its factorization.

22105043425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884201747 (or 884201742 counting only the distinct ones).

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

Adding to 22105043425 its reverse (52434050122), we get a palindrome (74539093547).

The spelling of 22105043425 in words is "twenty-two billion, one hundred five million, forty-three thousand, four hundred twenty-five".