5121212155244 has 24 divisors (see below), whose sum is σ = 9159901653168. Its totient is φ = 2504708302400.

The previous prime is 5121212155243. The next prime is 5121212155259. The reversal of 5121212155244 is 4425512121215.

It is not an unprimeable number, because it can be changed into a prime (5121212155243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 76329527 + ... + 76396590.

It is an arithmetic number, because the mean of its divisors is an integer number (381662568882).

Almost surely, 2^{5121212155244} is an apocalyptic number.

It is an amenable number.

5121212155244 is a deficient number, since it is larger than the sum of its proper divisors (4038689497924).

5121212155244 is a wasteful number, since it uses less digits than its factorization.

5121212155244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152726305 (or 152726303 counting only the distinct ones).

The product of its digits is 32000, while the sum is 35.

Adding to 5121212155244 its reverse (4425512121215), we get a palindrome (9546724276459).

The spelling of 5121212155244 in words is "five trillion, one hundred twenty-one billion, two hundred twelve million, one hundred fifty-five thousand, two hundred forty-four".