22722125 has 8 divisors (see below), whose sum is σ = 28357368. Its totient is φ = 18177600.

The previous prime is 22722113. The next prime is 22722127. The reversal of 22722125 is 52122722.

It can be written as a sum of positive squares in 4 ways, for example, as 2128681 + 20593444 = 1459^2 + 4538^2 .

It is not a de Polignac number, because 22722125 - 2¹⁶ = 22656589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22722125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22722127) 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, 90764 + ... + 91013.

It is an arithmetic number, because the mean of its divisors is an integer number (3544671).

Almost surely, 2^22722125 is an apocalyptic number.

22722125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22722125 is a deficient number, since it is larger than the sum of its proper divisors (5635243).

22722125 is an equidigital number, since it uses as much as digits as its factorization.

22722125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181792 (or 181782 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 22722125 is about 4766.7730174616. The cubic root of 22722125 is about 283.2367798649.

Adding to 22722125 its reverse (52122722), we get a palindrome (74844847).

The spelling of 22722125 in words is "twenty-two million, seven hundred twenty-two thousand, one hundred twenty-five".