22123245125 has 8 divisors (see below), whose sum is σ = 27609810072. Its totient is φ = 17698596000.

The previous prime is 22123245101. The next prime is 22123245127. The reversal of 22123245125 is 52154232122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1820984929 + 20302260196 = 42673^2 + 142486^2 .

It is not a de Polignac number, because 22123245125 - 2¹² = 22123241029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123245127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88492856 + ... + 88493105.

It is an arithmetic number, because the mean of its divisors is an integer number (3451226259).

Almost surely, 2^22123245125 is an apocalyptic number.

22123245125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22123245125 is a deficient number, since it is larger than the sum of its proper divisors (5486564947).

22123245125 is an equidigital number, since it uses as much as digits as its factorization.

22123245125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176985976 (or 176985966 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

Adding to 22123245125 its reverse (52154232122), we get a palindrome (74277477247).

The spelling of 22123245125 in words is "twenty-two billion, one hundred twenty-three million, two hundred forty-five thousand, one hundred twenty-five".