22180125 has 64 divisors (see below), whose sum is σ = 42531840. Its totient is φ = 10152000.

The previous prime is 22180111. The next prime is 22180141. The reversal of 22180125 is 52108122.

It is a happy number.

It is not a de Polignac number, because 22180125 - 2⁸ = 22179869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78234 + ... + 78516.

It is an arithmetic number, because the mean of its divisors is an integer number (664560).

Almost surely, 2^22180125 is an apocalyptic number.

22180125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22180125 is a deficient number, since it is larger than the sum of its proper divisors (20351715).

22180125 is a wasteful number, since it uses less digits than its factorization.

22180125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 22180125 is about 4709.5780065734. The cubic root of 22180125 is about 280.9665786841.

Adding to 22180125 its reverse (52108122), we get a palindrome (74288247).

The spelling of 22180125 in words is "twenty-two million, one hundred eighty thousand, one hundred twenty-five".