20205201 has 16 divisors (see below), whose sum is σ = 28394496. Its totient is φ = 12754896.

The previous prime is 20205193. The next prime is 20205223. The reversal of 20205201 is 10250202.

It is not a de Polignac number, because 20205201 - 2³ = 20205193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20205281) 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 15 ways as a sum of consecutive naturals, for example, 5686 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (1774656).

Almost surely, 2^20205201 is an apocalyptic number.

It is an amenable number.

20205201 is a deficient number, since it is larger than the sum of its proper divisors (8189295).

20205201 is a wasteful number, since it uses less digits than its factorization.

20205201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20205201 is about 4495.0195772655. The cubic root of 20205201 is about 272.3669400603.

Adding to 20205201 its reverse (10250202), we get a palindrome (30455403).

The spelling of 20205201 in words is "twenty million, two hundred five thousand, two hundred one".