431222303221 has 8 divisors (see below), whose sum is σ = 431766359640. Its totient is φ = 430678560768.

The previous prime is 431222303219. The next prime is 431222303233. The reversal of 431222303221 is 122303222134.

It can be written as a sum of positive squares in 4 ways, for example, as 231976126321 + 199246176900 = 481639^2 + 446370^2 .

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 431222303221 - 2¹ = 431222303219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431222303921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733325 + ... + 2886781.

It is an arithmetic number, because the mean of its divisors is an integer number (53970794955).

Almost surely, 2^431222303221 is an apocalyptic number.

It is an amenable number.

431222303221 is a deficient number, since it is larger than the sum of its proper divisors (544056419).

431222303221 is a wasteful number, since it uses less digits than its factorization.

431222303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156983.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 431222303221 its reverse (122303222134), we get a palindrome (553525525355).

The spelling of 431222303221 in words is "four hundred thirty-one billion, two hundred twenty-two million, three hundred three thousand, two hundred twenty-one".