20222332312 has 128 divisors (see below), whose sum is σ = 47374185600. Its totient is φ = 7879680000.

The previous prime is 20222332289. The next prime is 20222332327. The reversal of 20222332312 is 21323322202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16837312 + ... + 16838512.

It is an arithmetic number, because the mean of its divisors is an integer number (370110825).

Almost surely, 2^20222332312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222332312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23687092800).

20222332312 is an abundant number, since it is smaller than the sum of its proper divisors (27151853288).

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

20222332312 is a wasteful number, since it uses less digits than its factorization.

20222332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1553 counting only the distinct ones).

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

Adding to 20222332312 its reverse (21323322202), we get a palindrome (41545654514).

The spelling of 20222332312 in words is "twenty billion, two hundred twenty-two million, three hundred thirty-two thousand, three hundred twelve".