22211200212 has 12 divisors (see below), whose sum is σ = 51826133856. Its totient is φ = 7403733400.

The previous prime is 22211200181. The next prime is 22211200273. The reversal of 22211200212 is 21200211222.

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 = 22211200191 and 22211200200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925466664 + ... + 925466687.

It is an arithmetic number, because the mean of its divisors is an integer number (4318844488).

Almost surely, 2^22211200212 is an apocalyptic number.

It is an amenable number.

22211200212 is an abundant number, since it is smaller than the sum of its proper divisors (29614933644).

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

22211200212 is a wasteful number, since it uses less digits than its factorization.

22211200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850933358 (or 1850933356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22211200212 its reverse (21200211222), we get a palindrome (43411411434).

The spelling of 22211200212 in words is "twenty-two billion, two hundred eleven million, two hundred thousand, two hundred twelve".