22355412125 has 8 divisors (see below), whose sum is σ = 27899554488. Its totient is φ = 17884329600.

The previous prime is 22355412067. The next prime is 22355412139. The reversal of 22355412125 is 52121455322.

It can be written as a sum of positive squares in 4 ways, for example, as 135932281 + 22219479844 = 11659^2 + 149062^2 .

It is not a de Polignac number, because 22355412125 - 2⁶ = 22355412061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22355412091 and 22355412100.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 89421524 + ... + 89421773.

It is an arithmetic number, because the mean of its divisors is an integer number (3487444311).

Almost surely, 2^22355412125 is an apocalyptic number.

22355412125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22355412125 is a deficient number, since it is larger than the sum of its proper divisors (5544142363).

22355412125 is an equidigital number, since it uses as much as digits as its factorization.

22355412125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178843312 (or 178843302 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

Adding to 22355412125 its reverse (52121455322), we get a palindrome (74476867447).

The spelling of 22355412125 in words is "twenty-two billion, three hundred fifty-five million, four hundred twelve thousand, one hundred twenty-five".