20312223322 has 16 divisors (see below), whose sum is σ = 32580007272. Its totient is φ = 9464051200.

The previous prime is 20312223311. The next prime is 20312223331. The reversal of 20312223322 is 22332221302.

It can be written as a sum of positive squares in 4 ways, for example, as 20177918401 + 134304921 = 142049^2 + 11589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20312223293 and 20312223302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954083 + ... + 2960950.

Almost surely, 2^20312223322 is an apocalyptic number.

20312223322 is a deficient number, since it is larger than the sum of its proper divisors (12267783950).

20312223322 is a wasteful number, since it uses less digits than its factorization.

20312223322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915153.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20312223322 its reverse (22332221302), we get a palindrome (42644444624).

The spelling of 20312223322 in words is "twenty billion, three hundred twelve million, two hundred twenty-three thousand, three hundred twenty-two".