22125150 has 84 divisors (see below), whose sum is σ = 61802592. Its totient is φ = 5890320.

The previous prime is 22125113. The next prime is 22125151. The reversal of 22125150 is 5152122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22125151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 36147 + ... + 36753.

Almost surely, 2^22125150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22125150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30901296).

22125150 is an abundant number, since it is smaller than the sum of its proper divisors (39677442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22125150 is an equidigital number, since it uses as much as digits as its factorization.

22125150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 22125150 is about 4703.7378753498. The cubic root of 22125150 is about 280.7342548249.

Adding to 22125150 its reverse (5152122), we get a palindrome (27277272).

The spelling of 22125150 in words is "twenty-two million, one hundred twenty-five thousand, one hundred fifty".