20027201 has 4 divisors (see below), whose sum is σ = 20036400. Its totient is φ = 20018004.

The previous prime is 20027179. The next prime is 20027213. The reversal of 20027201 is 10272002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20027201 - 2¹⁰ = 20026177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20027221) 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, 710 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (5009100).

Almost surely, 2^20027201 is an apocalyptic number.

It is an amenable number.

20027201 is a deficient number, since it is larger than the sum of its proper divisors (9199).

20027201 is an equidigital number, since it uses as much as digits as its factorization.

20027201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9198.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 20027201 is about 4475.1760859211. The cubic root of 20027201 is about 271.5647640359.

Adding to 20027201 its reverse (10272002), we get a palindrome (30299203).

The spelling of 20027201 in words is "twenty million, twenty-seven thousand, two hundred one".