22231000212 has 12 divisors (see below), whose sum is σ = 51872333856. Its totient is φ = 7410333400.

The previous prime is 22231000189. The next prime is 22231000219. The reversal of 22231000212 is 21200013222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22231000191 and 22231000200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231000219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926291664 + ... + 926291687.

It is an arithmetic number, because the mean of its divisors is an integer number (4322694488).

Almost surely, 2^22231000212 is an apocalyptic number.

It is an amenable number.

22231000212 is an abundant number, since it is smaller than the sum of its proper divisors (29641333644).

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

22231000212 is a wasteful number, since it uses less digits than its factorization.

22231000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852583358 (or 1852583356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22231000212 its reverse (21200013222), we get a palindrome (43431013434).

The spelling of 22231000212 in words is "twenty-two billion, two hundred thirty-one million, two hundred twelve", and thus it is an aban number.