20227201 has 4 divisors (see below), whose sum is σ = 20236804. Its totient is φ = 20217600.

The previous prime is 20227133. The next prime is 20227217. The reversal of 20227201 is 10272202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8116801 + 12110400 = 2849^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 20227201 - 2⁷ = 20227073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20227231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120 + ... + 6361.

It is an arithmetic number, because the mean of its divisors is an integer number (5059201).

Almost surely, 2^20227201 is an apocalyptic number.

It is an amenable number.

20227201 is a deficient number, since it is larger than the sum of its proper divisors (9603).

20227201 is an equidigital number, since it uses as much as digits as its factorization.

20227201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9602.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 20227201 is about 4497.4660643522. The cubic root of 20227201 is about 272.4657578386.

Adding to 20227201 its reverse (10272202), we get a palindrome (30499403).

The spelling of 20227201 in words is "twenty million, two hundred twenty-seven thousand, two hundred one".