200522421 has 12 divisors (see below), whose sum is σ = 315974880. Its totient is φ = 121528680.

The previous prime is 200522401. The next prime is 200522449. The reversal of 200522421 is 124225002.

It is not a de Polignac number, because 200522421 - 2¹⁰ = 200521397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200522394 and 200522403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200522401) 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 11 ways as a sum of consecutive naturals, for example, 1012641 + ... + 1012838.

It is an arithmetic number, because the mean of its divisors is an integer number (26331240).

Almost surely, 2^200522421 is an apocalyptic number.

It is an amenable number.

200522421 is a deficient number, since it is larger than the sum of its proper divisors (115452459).

200522421 is a wasteful number, since it uses less digits than its factorization.

200522421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025496 (or 2025493 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 200522421 is about 14160.5939494076. The cubic root of 200522421 is about 585.3122943564.

Adding to 200522421 its reverse (124225002), we get a palindrome (324747423).

The spelling of 200522421 in words is "two hundred million, five hundred twenty-two thousand, four hundred twenty-one".