22124145042425 has 12 divisors (see below), whose sum is σ = 27515346212796. Its totient is φ = 17646795801600.

The previous prime is 22124145042413. The next prime is 22124145042427. The reversal of 22124145042425 is 52424054142122.

It can be written as a sum of positive squares in 6 ways, for example, as 3096586322944 + 19027558719481 = 1759712^2 + 4362059^2 .

It is not a de Polignac number, because 22124145042425 - 2⁸ = 22124145042169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22124145042427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1312997216 + ... + 1313014065.

It is an arithmetic number, because the mean of its divisors is an integer number (2292945517733).

Almost surely, 2^{22124145042425} is an apocalyptic number.

22124145042425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22124145042425 is a deficient number, since it is larger than the sum of its proper divisors (5391201170371).

22124145042425 is a wasteful number, since it uses less digits than its factorization.

22124145042425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626011628 (or 2626011623 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 38.

Adding to 22124145042425 its reverse (52424054142122), we get a palindrome (74548199184547).

The spelling of 22124145042425 in words is "twenty-two trillion, one hundred twenty-four billion, one hundred forty-five million, forty-two thousand, four hundred twenty-five".