201224424 has 32 divisors (see below), whose sum is σ = 524934720. Its totient is φ = 64158336.

The previous prime is 201224363. The next prime is 201224467. The reversal of 201224424 is 424422102.

It is a self number, because there is not a number n which added to its sum of digits gives 201224424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181717 + ... + 182820.

It is an arithmetic number, because the mean of its divisors is an integer number (16404210).

Almost surely, 2^201224424 is an apocalyptic number.

201224424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201224424 is an abundant number, since it is smaller than the sum of its proper divisors (323710296).

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

201224424 is a wasteful number, since it uses less digits than its factorization.

201224424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364569 (or 364565 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 201224424 is about 14185.3594949159. The cubic root of 201224424 is about 585.9945329857.

Adding to 201224424 its reverse (424422102), we get a palindrome (625646526).

The spelling of 201224424 in words is "two hundred one million, two hundred twenty-four thousand, four hundred twenty-four".