22222312230 has 64 divisors (see below), whose sum is σ = 54686570688. Its totient is φ = 5777041920.

The previous prime is 22222312213. The next prime is 22222312243. The reversal of 22222312230 is 3221322222.

It is a junction number, because it is equal to n+sod(n) for n = 22222312197 and 22222312206.

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, 205120 + ... + 294140.

It is an arithmetic number, because the mean of its divisors is an integer number (854477667).

Almost surely, 2^22222312230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22222312230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27343285344).

22222312230 is an abundant number, since it is smaller than the sum of its proper divisors (32464258458).

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

22222312230 is a wasteful number, since it uses less digits than its factorization.

22222312230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89241.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22222312230 its reverse (3221322222), we get a palindrome (25443634452).

The spelling of 22222312230 in words is "twenty-two billion, two hundred twenty-two million, three hundred twelve thousand, two hundred thirty".