22124220325 has 12 divisors (see below), whose sum is σ = 29047800420. Its totient is φ = 16658236160.

The previous prime is 22124220323. The next prime is 22124220341. The reversal of 22124220325 is 52302242122.

It can be written as a sum of positive squares in 6 ways, for example, as 2980177281 + 19144043044 = 54591^2 + 138362^2 .

It is not a de Polignac number, because 22124220325 - 2¹ = 22124220323 is a prime.

It is a super-2 number, since 2×22124220325² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 22124220325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22124220323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26028070 + ... + 26028919.

It is an arithmetic number, because the mean of its divisors is an integer number (2420650035).

Almost surely, 2^22124220325 is an apocalyptic number.

22124220325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22124220325 is a deficient number, since it is larger than the sum of its proper divisors (6923580095).

22124220325 is a wasteful number, since it uses less digits than its factorization.

22124220325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52057016 (or 52057011 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 22124220325 its reverse (52302242122), we get a palindrome (74426462447).

The spelling of 22124220325 in words is "twenty-two billion, one hundred twenty-four million, two hundred twenty thousand, three hundred twenty-five".