22011323232 has 24 divisors (see below), whose sum is σ = 57779723736. Its totient is φ = 7337107712.

The previous prime is 22011323231. The next prime is 22011323237. The reversal of 22011323232 is 23232311022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 22011323199 and 22011323208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011323231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114642213 + ... + 114642404.

It is an arithmetic number, because the mean of its divisors is an integer number (2407488489).

Almost surely, 2^22011323232 is an apocalyptic number.

It is an amenable number.

22011323232 is an abundant number, since it is smaller than the sum of its proper divisors (35768400504).

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

22011323232 is a wasteful number, since it uses less digits than its factorization.

22011323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229284630 (or 229284622 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22011323232 its reverse (23232311022), we get a palindrome (45243634254).

The spelling of 22011323232 in words is "twenty-two billion, eleven million, three hundred twenty-three thousand, two hundred thirty-two".