201112322550 has 48 divisors (see below), whose sum is σ = 498833786880. Its totient is φ = 53621863840.

The previous prime is 201112322507. The next prime is 201112322597. The reversal of 201112322550 is 55223211102.

It is a self number, because there is not a number n which added to its sum of digits gives 201112322550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 931771 + ... + 1127129.

It is an arithmetic number, because the mean of its divisors is an integer number (10392370560).

Almost surely, 2^201112322550 is an apocalyptic number.

201112322550 is an abundant number, since it is smaller than the sum of its proper divisors (297721464330).

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

201112322550 is a wasteful number, since it uses less digits than its factorization.

201112322550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202237 (or 202232 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 201112322550 its reverse (55223211102), we get a palindrome (256335533652).

The spelling of 201112322550 in words is "two hundred one billion, one hundred twelve million, three hundred twenty-two thousand, five hundred fifty".