1205434220500 has 48 divisors (see below), whose sum is σ = 2747132204544. Its totient is φ = 461209610400.

The previous prime is 1205434220489. The next prime is 1205434220503. The reversal of 1205434220500 is 50224345021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205434220503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52398684 + ... + 52421683.

It is an arithmetic number, because the mean of its divisors is an integer number (57231920928).

Almost surely, 2^{1205434220500} is an apocalyptic number.

1205434220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1205434220500 is an abundant number, since it is smaller than the sum of its proper divisors (1541697984044).

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

1205434220500 is a wasteful number, since it uses less digits than its factorization.

1205434220500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104820409 (or 104820397 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 1205434220500 its reverse (50224345021), we get a palindrome (1255658565521).

The spelling of 1205434220500 in words is "one trillion, two hundred five billion, four hundred thirty-four million, two hundred twenty thousand, five hundred".