431222222 has 8 divisors (see below), whose sum is σ = 650572776. Its totient is φ = 214364632.

The previous prime is 431222191. The next prime is 431222261. The reversal of 431222222 is 222222134.

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

431222222 is a modest number, since divided by 22222 gives 4312 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 431222194 and 431222203.

It is a congruent number.

It is an unprimeable number.

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, 622808 + ... + 623499.

It is an arithmetic number, because the mean of its divisors is an integer number (81321597).

Almost surely, 2^431222222 is an apocalyptic number.

431222222 is a deficient number, since it is larger than the sum of its proper divisors (219350554).

431222222 is a wasteful number, since it uses less digits than its factorization.

431222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246482.

The product of its digits is 768, while the sum is 20.

The square root of 431222222 is about 20765.8908308794. The cubic root of 431222222 is about 755.4986819919.

Adding to 431222222 its reverse (222222134), we get a palindrome (653444356).

The spelling of 431222222 in words is "four hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty-two".