431222201 has 4 divisors (see below), whose sum is σ = 431430912. Its totient is φ = 431013492.

The previous prime is 431222191. The next prime is 431222261. The reversal of 431222201 is 102222134.

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.

It is a cyclic number.

It is not a de Polignac number, because 431222201 - 2⁶ = 431222137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 431222201.

It is not an unprimeable number, because it can be changed into a prime (431222261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101225 + ... + 105398.

It is an arithmetic number, because the mean of its divisors is an integer number (107857728).

Almost surely, 2^431222201 is an apocalyptic number.

It is an amenable number.

431222201 is a deficient number, since it is larger than the sum of its proper divisors (208711).

431222201 is a wasteful number, since it uses less digits than its factorization.

431222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208710.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 431222201 is about 20765.8903252425. The cubic root of 431222201 is about 755.4986697280.

Adding to 431222201 its reverse (102222134), we get a palindrome (533444335).

The spelling of 431222201 in words is "four hundred thirty-one million, two hundred twenty-two thousand, two hundred one".