201220562 has 16 divisors (see below), whose sum is σ = 309834720. Its totient is φ = 97974528.

The previous prime is 201220561. The next prime is 201220567. The reversal of 201220562 is 265022102.

It is not an unprimeable number, because it can be changed into a prime (201220561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4658 + ... + 20594.

It is an arithmetic number, because the mean of its divisors is an integer number (19364670).

Almost surely, 2^201220562 is an apocalyptic number.

201220562 is a deficient number, since it is larger than the sum of its proper divisors (108614158).

201220562 is a wasteful number, since it uses less digits than its factorization.

201220562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16105.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201220562 is about 14185.2233679981. The cubic root of 201220562 is about 585.9907840614.

Adding to 201220562 its reverse (265022102), we get a palindrome (466242664).

The spelling of 201220562 in words is "two hundred one million, two hundred twenty thousand, five hundred sixty-two".