12125234005500 has 576 divisors, whose sum is σ = 44785818814464. Its totient is φ = 2495040768000.

The previous prime is 12125234005483. The next prime is 12125234005559. The reversal of 12125234005500 is 550043252121.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 191 ways as a sum of consecutive naturals, for example, 130815172 + ... + 130907828.

It is an arithmetic number, because the mean of its divisors is an integer number (77753157664).

Almost surely, 2^{12125234005500} is an apocalyptic number.

12125234005500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12125234005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22392909407232).

12125234005500 is an abundant number, since it is smaller than the sum of its proper divisors (32660584808964).

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

12125234005500 is a wasteful number, since it uses less digits than its factorization.

12125234005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92811 (or 92788 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 12125234005500 its reverse (550043252121), we get a palindrome (12675277257621).

The spelling of 12125234005500 in words is "twelve trillion, one hundred twenty-five billion, two hundred thirty-four million, five thousand, five hundred".