10213205550 has 96 divisors (see below), whose sum is σ = 25701792480. Its totient is φ = 2683699200.

The previous prime is 10213205537. The next prime is 10213205621. The reversal of 10213205550 is 5550231201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10213205550.

It is a congruent number.

It is an unprimeable number.

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, 3066286 + ... + 3069614.

It is an arithmetic number, because the mean of its divisors is an integer number (267727005).

Almost surely, 2^10213205550 is an apocalyptic number.

10213205550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10213205550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12850896240).

10213205550 is an abundant number, since it is smaller than the sum of its proper divisors (15488586930).

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

10213205550 is a wasteful number, since it uses less digits than its factorization.

10213205550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 10213205550 its reverse (5550231201), we get a palindrome (15763436751).

The spelling of 10213205550 in words is "ten billion, two hundred thirteen million, two hundred five thousand, five hundred fifty".