5121220221215 has 16 divisors (see below), whose sum is σ = 7042951503360. Its totient is φ = 3501911980320.

The previous prime is 5121220221211. The next prime is 5121220221281.

5121220221215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5121220221215 - 2² = 5121220221211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121220221211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 203776541 + ... + 203801670.

It is an arithmetic number, because the mean of its divisors is an integer number (440184468960).

Almost surely, 2^{5121220221215} is an apocalyptic number.

5121220221215 is a deficient number, since it is larger than the sum of its proper divisors (1921731282145).

5121220221215 is a wasteful number, since it uses less digits than its factorization.

5121220221215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407578582.

The product of its (nonzero) digits is 1600, while the sum is 26.

It can be divided in two parts, 5121220 and 221215, that added together give a palindrome (5342435).

The spelling of 5121220221215 in words is "five trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred fifteen".