22421125 has 8 divisors (see below), whose sum is σ = 27981720. Its totient is φ = 17936800.

The previous prime is 22421123. The next prime is 22421167. The reversal of 22421125 is 52112422.

It can be written as a sum of positive squares in 4 ways, for example, as 1682209 + 20738916 = 1297^2 + 4554^2 .

It is not a de Polignac number, because 22421125 - 2¹ = 22421123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421123) 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, 89560 + ... + 89809.

It is an arithmetic number, because the mean of its divisors is an integer number (3497715).

Almost surely, 2^22421125 is an apocalyptic number.

22421125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22421125 is a deficient number, since it is larger than the sum of its proper divisors (5560595).

22421125 is an equidigital number, since it uses as much as digits as its factorization.

22421125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179384 (or 179374 counting only the distinct ones).

The product of its digits is 320, while the sum is 19.

The square root of 22421125 is about 4735.0950360051. The cubic root of 22421125 is about 281.9805370267.

Adding to 22421125 its reverse (52112422), we get a palindrome (74533547).

The spelling of 22421125 in words is "twenty-two million, four hundred twenty-one thousand, one hundred twenty-five".