22443031212 has 48 divisors (see below), whose sum is σ = 61911816960. Its totient is φ = 6191180352.

The previous prime is 22443031199. The next prime is 22443031213. The reversal of 22443031212 is 21213034422.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22443031213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4604098 + ... + 4608969.

It is an arithmetic number, because the mean of its divisors is an integer number (1289829520).

Almost surely, 2^22443031212 is an apocalyptic number.

It is an amenable number.

22443031212 is an abundant number, since it is smaller than the sum of its proper divisors (39468785748).

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

22443031212 is a wasteful number, since it uses less digits than its factorization.

22443031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9213110 (or 9213108 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22443031212 its reverse (21213034422), we get a palindrome (43656065634).

The spelling of 22443031212 in words is "twenty-two billion, four hundred forty-three million, thirty-one thousand, two hundred twelve".