22423213230 has 128 divisors (see below), whose sum is σ = 60527761920. Its totient is φ = 5268579840.

The previous prime is 22423213207. The next prime is 22423213243. The reversal of 22423213230 is 3231232422.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22423213230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3281077 + ... + 3287903.

It is an arithmetic number, because the mean of its divisors is an integer number (472873140).

Almost surely, 2^22423213230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22423213230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30263880960).

22423213230 is an abundant number, since it is smaller than the sum of its proper divisors (38104548690).

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

22423213230 is a wasteful number, since it uses less digits than its factorization.

22423213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 22423213230 its reverse (3231232422), we get a palindrome (25654445652).

The spelling of 22423213230 in words is "twenty-two billion, four hundred twenty-three million, two hundred thirteen thousand, two hundred thirty".