20431040222 has 8 divisors (see below), whose sum is σ = 30647251272. Its totient is φ = 10215289800.

The previous prime is 20431040219. The next prime is 20431040237. The reversal of 20431040222 is 22204013402.

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

It is a junction number, because it is equal to n+sod(n) for n = 20431040194 and 20431040203.

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, 34772 + ... + 205112.

It is an arithmetic number, because the mean of its divisors is an integer number (3830906409).

Almost surely, 2^20431040222 is an apocalyptic number.

20431040222 is a deficient number, since it is larger than the sum of its proper divisors (10216211050).

20431040222 is a wasteful number, since it uses less digits than its factorization.

20431040222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230314.

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

Adding to 20431040222 its reverse (22204013402), we get a palindrome (42635053624).

The spelling of 20431040222 in words is "twenty billion, four hundred thirty-one million, forty thousand, two hundred twenty-two".