202114421 has 4 divisors (see below), whose sum is σ = 203401932. Its totient is φ = 200826912.

The previous prime is 202114417. The next prime is 202114439. The reversal of 202114421 is 124411202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143760100 + 58354321 = 11990^2 + 7639^2 .

It is a cyclic number.

It is not a de Polignac number, because 202114421 - 2² = 202114417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202114421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202114721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643520 + ... + 643833.

It is an arithmetic number, because the mean of its divisors is an integer number (50850483).

Almost surely, 2^202114421 is an apocalyptic number.

It is an amenable number.

202114421 is a deficient number, since it is larger than the sum of its proper divisors (1287511).

202114421 is a wasteful number, since it uses less digits than its factorization.

202114421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287510.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 202114421 is about 14216.6951504209. The cubic root of 202114421 is about 586.8571955986.

Adding to 202114421 its reverse (124411202), we get a palindrome (326525623).

The spelling of 202114421 in words is "two hundred two million, one hundred fourteen thousand, four hundred twenty-one".