20312244222 has 16 divisors (see below), whose sum is σ = 41113941120. Its totient is φ = 6689172632.

The previous prime is 20312244179. The next prime is 20312244289. The reversal of 20312244222 is 22244221302.

It is a junction number, because it is equal to n+sod(n) for n = 20312244192 and 20312244201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20393322 + ... + 20394317.

It is an arithmetic number, because the mean of its divisors is an integer number (2569621320).

Almost surely, 2^20312244222 is an apocalyptic number.

20312244222 is an abundant number, since it is smaller than the sum of its proper divisors (20801696898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312244222 is a wasteful number, since it uses less digits than its factorization.

20312244222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40787727.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20312244222 its reverse (22244221302), we get a palindrome (42556465524).

The spelling of 20312244222 in words is "twenty billion, three hundred twelve million, two hundred forty-four thousand, two hundred twenty-two".