205051244120 has 32 divisors (see below), whose sum is σ = 463380015600. Its totient is φ = 81662325888.

The previous prime is 205051244119. The next prime is 205051244191. The reversal of 205051244120 is 21442150502.

It is a self number, because there is not a number n which added to its sum of digits gives 205051244120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11183594 + ... + 11201913.

Almost surely, 2^205051244120 is an apocalyptic number.

205051244120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205051244120 is an abundant number, since it is smaller than the sum of its proper divisors (258328771480).

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

205051244120 is a wasteful number, since it uses less digits than its factorization.

205051244120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22385747 (or 22385743 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 205051244120 its reverse (21442150502), we get a palindrome (226493394622).

The spelling of 205051244120 in words is "two hundred five billion, fifty-one million, two hundred forty-four thousand, one hundred twenty".