202114231421 has 12 divisors (see below), whose sum is σ = 204977754228. Its totient is φ = 199285223424.

The previous prime is 202114231393. The next prime is 202114231439. The reversal of 202114231421 is 124132411202.

It can be written as a sum of positive squares in 6 ways, for example, as 172482396100 + 29631835321 = 415310^2 + 172139^2 .

It is not a de Polignac number, because 202114231421 - 2¹⁰ = 202114230397 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 (202114231321) 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 11 ways as a sum of consecutive naturals, for example, 2423411 + ... + 2505423.

It is an arithmetic number, because the mean of its divisors is an integer number (17081479519).

Almost surely, 2^202114231421 is an apocalyptic number.

It is an amenable number.

202114231421 is a deficient number, since it is larger than the sum of its proper divisors (2863522807).

202114231421 is an equidigital number, since it uses as much as digits as its factorization.

202114231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82432 (or 82319 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 202114231421 its reverse (124132411202), we get a palindrome (326246642623).

The spelling of 202114231421 in words is "two hundred two billion, one hundred fourteen million, two hundred thirty-one thousand, four hundred twenty-one".