500121000750000 has 560 divisors, whose sum is σ = 1909305085582080. Its totient is φ = 110371497600000.

The previous prime is 500121000749863. The next prime is 500121000750013. The reversal of 500121000750000 is 57000121005.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 150607567 + ... + 153892433.

Almost surely, 2^{500121000750000} is an apocalyptic number.

500121000750000 is a gapful number since it is divisible by the number (50) 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 500121000750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954652542791040).

500121000750000 is an abundant number, since it is smaller than the sum of its proper divisors (1409184084832080).

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

500121000750000 is an equidigital number, since it uses as much as digits as its factorization.

500121000750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284944 (or 3284913 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

Adding to 500121000750000 its reverse (57000121005), we get a palindrome (500178000871005).

The spelling of 500121000750000 in words is "five hundred trillion, one hundred twenty-one billion, seven hundred fifty thousand".