201216124 has 12 divisors (see below), whose sum is σ = 353401384. Its totient is φ = 100244304.

The previous prime is 201216109. The next prime is 201216149. The reversal of 201216124 is 421612102.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 89694 + ... + 91909.

Almost surely, 2^201216124 is an apocalyptic number.

It is an amenable number.

201216124 is a deficient number, since it is larger than the sum of its proper divisors (152185260).

201216124 is a wasteful number, since it uses less digits than its factorization.

201216124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181884 (or 181882 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 201216124 is about 14185.0669367472. The cubic root of 201216124 is about 585.9864759427.

Adding to 201216124 its reverse (421612102), we get a palindrome (622828226).

The spelling of 201216124 in words is "two hundred one million, two hundred sixteen thousand, one hundred twenty-four".