504206216121 has 16 divisors (see below), whose sum is σ = 673227821504. Its totient is φ = 335661240384.

The previous prime is 504206216099. The next prime is 504206216123. The reversal of 504206216121 is 121612602405.

It is not a de Polignac number, because 504206216121 - 2⁹ = 504206215609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504206216123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11511555 + ... + 11555271.

It is an arithmetic number, because the mean of its divisors is an integer number (42076738844).

Almost surely, 2^504206216121 is an apocalyptic number.

It is an amenable number.

504206216121 is a deficient number, since it is larger than the sum of its proper divisors (169021605383).

504206216121 is a wasteful number, since it uses less digits than its factorization.

504206216121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49080.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 504206216121 its reverse (121612602405), we get a palindrome (625818818526).

The spelling of 504206216121 in words is "five hundred four billion, two hundred six million, two hundred sixteen thousand, one hundred twenty-one".