201213227 has 2 divisors, whose sum is σ = 201213228. Its totient is φ = 201213226.

The previous prime is 201213209. The next prime is 201213253. The reversal of 201213227 is 722312102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201213227 - 2⁶ = 201213163 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 201213199 and 201213208.

It is not a weakly prime, because it can be changed into another prime (201213277) 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 as a sum of consecutive naturals, namely, 100606613 + 100606614.

It is an arithmetic number, because the mean of its divisors is an integer number (100606614).

Almost surely, 2^201213227 is an apocalyptic number.

201213227 is a deficient number, since it is larger than the sum of its proper divisors (1).

201213227 is an equidigital number, since it uses as much as digits as its factorization.

201213227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 201213227 is about 14184.9648219514. The cubic root of 201213227 is about 585.9836636913.

Adding to 201213227 its reverse (722312102), we get a palindrome (923525329).

The spelling of 201213227 in words is "two hundred one million, two hundred thirteen thousand, two hundred twenty-seven".