350303500220421 has 16 divisors (see below), whose sum is σ = 509783488925760. Its totient is φ = 212200516245120.

The previous prime is 350303500220419. The next prime is 350303500220483. The reversal of 350303500220421 is 124022005303053.

It is not a de Polignac number, because 350303500220421 - 2¹ = 350303500220419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350303500220521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2615817120 + ... + 2615951033.

It is an arithmetic number, because the mean of its divisors is an integer number (31861468057860).

Almost surely, 2^{350303500220421} is an apocalyptic number.

It is an amenable number.

350303500220421 is a deficient number, since it is larger than the sum of its proper divisors (159479988705339).

350303500220421 is a wasteful number, since it uses less digits than its factorization.

350303500220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231770196.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 350303500220421 its reverse (124022005303053), we get a palindrome (474325505523474).

The spelling of 350303500220421 in words is "three hundred fifty trillion, three hundred three billion, five hundred million, two hundred twenty thousand, four hundred twenty-one".