22172150 has 96 divisors (see below), whose sum is σ = 55496448. Its totient is φ = 6364800.

The previous prime is 22172149. The next prime is 22172159. The reversal of 22172150 is 5127122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22172159) 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 47 ways as a sum of consecutive naturals, for example, 49829 + ... + 50271.

It is an arithmetic number, because the mean of its divisors is an integer number (578088).

Almost surely, 2^22172150 is an apocalyptic number.

22172150 is an abundant number, since it is smaller than the sum of its proper divisors (33324298).

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

22172150 is a wasteful number, since it uses less digits than its factorization.

22172150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 22172150 is about 4708.7312516218. The cubic root of 22172150 is about 280.9329002284.

Adding to 22172150 its reverse (5127122), we get a palindrome (27299272).

It can be divided in two parts, 22172 and 150, that added together give a palindrome (22322).

The spelling of 22172150 in words is "twenty-two million, one hundred seventy-two thousand, one hundred fifty".