422120201 has 8 divisors (see below), whose sum is σ = 440543880. Its totient is φ = 403954432.

The previous prime is 422120189. The next prime is 422120203. The reversal of 422120201 is 102021224.

It can be written as a sum of positive squares in 4 ways, for example, as 18913801 + 403206400 = 4349^2 + 20080^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422120201 - 2⁶ = 422120137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (422120203) 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 7 ways as a sum of consecutive naturals, for example, 61130 + ... + 67683.

It is an arithmetic number, because the mean of its divisors is an integer number (55067985).

Almost surely, 2^422120201 is an apocalyptic number.

It is an amenable number.

422120201 is a deficient number, since it is larger than the sum of its proper divisors (18423679).

422120201 is a wasteful number, since it uses less digits than its factorization.

422120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128955.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 422120201 is about 20545.5640224356. The cubic root of 422120201 is about 750.1452761543.

Adding to 422120201 its reverse (102021224), we get a palindrome (524141425).

The spelling of 422120201 in words is "four hundred twenty-two million, one hundred twenty thousand, two hundred one".