201242224 has 40 divisors (see below), whose sum is σ = 414477440. Its totient is φ = 94385088.

The previous prime is 201242221. The next prime is 201242257. The reversal of 201242224 is 422242102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201242221) 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, 28099 + ... + 34525.

It is an arithmetic number, because the mean of its divisors is an integer number (10361936).

Almost surely, 2^201242224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201242224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207238720).

201242224 is an abundant number, since it is smaller than the sum of its proper divisors (213235216).

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

201242224 is a wasteful number, since it uses less digits than its factorization.

201242224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557 (or 6551 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 201242224 is about 14185.9868884755. The cubic root of 201242224 is about 586.0118111983.

Adding to 201242224 its reverse (422242102), we get a palindrome (623484326).

The spelling of 201242224 in words is "two hundred one million, two hundred forty-two thousand, two hundred twenty-four".