442210201 has 2 divisors, whose sum is σ = 442210202. Its totient is φ = 442210200.

The previous prime is 442210157. The next prime is 442210211. The reversal of 442210201 is 102012244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395970201 + 46240000 = 19899^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 442210201 - 2¹³ = 442202009 is a prime.

It is not a weakly prime, because it can be changed into another prime (442210211) 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, 221105100 + 221105101.

It is an arithmetic number, because the mean of its divisors is an integer number (221105101).

Almost surely, 2^442210201 is an apocalyptic number.

It is an amenable number.

442210201 is a deficient number, since it is larger than the sum of its proper divisors (1).

442210201 is an equidigital number, since it uses as much as digits as its factorization.

442210201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 442210201 is about 21028.7945684007. The cubic root of 442210201 is about 761.8618943801.

Adding to 442210201 its reverse (102012244), we get a palindrome (544222445).

The spelling of 442210201 in words is "four hundred forty-two million, two hundred ten thousand, two hundred one".