214631226520421 has 4 divisors (see below), whose sum is σ = 215830283652000. Its totient is φ = 213432169388844.

The previous prime is 214631226520387. The next prime is 214631226520441. The reversal of 214631226520421 is 124025622136412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214631226520421 - 2⁶ = 214631226520357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214631226520441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599528565521 + ... + 599528565878.

It is an arithmetic number, because the mean of its divisors is an integer number (53957570913000).

Almost surely, 2^{214631226520421} is an apocalyptic number.

It is an amenable number.

214631226520421 is a deficient number, since it is larger than the sum of its proper divisors (1199057131579).

214631226520421 is a wasteful number, since it uses less digits than its factorization.

214631226520421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199057131578.

The product of its (nonzero) digits is 276480, while the sum is 41.

Adding to 214631226520421 its reverse (124025622136412), we get a palindrome (338656848656833).

The spelling of 214631226520421 in words is "two hundred fourteen trillion, six hundred thirty-one billion, two hundred twenty-six million, five hundred twenty thousand, four hundred twenty-one".