12122200212 has 12 divisors (see below), whose sum is σ = 28285133856. Its totient is φ = 4040733400.

The previous prime is 12122200199. The next prime is 12122200271. The reversal of 12122200212 is 21200222121.

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 = 12122200191 and 12122200200.

It is a congruent number.

It is an unprimeable number.

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, 505091664 + ... + 505091687.

It is an arithmetic number, because the mean of its divisors is an integer number (2357094488).

Almost surely, 2^12122200212 is an apocalyptic number.

12122200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122200212 is an abundant number, since it is smaller than the sum of its proper divisors (16162933644).

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

12122200212 is a wasteful number, since it uses less digits than its factorization.

12122200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010183358 (or 1010183356 counting only the distinct ones).

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

Adding to 12122200212 its reverse (21200222121), we get a palindrome (33322422333).

The spelling of 12122200212 in words is "twelve billion, one hundred twenty-two million, two hundred thousand, two hundred twelve".