12122212222000 has 80 divisors (see below), whose sum is σ = 30322250992800. Its totient is φ = 4681681939200.

The previous prime is 12122212221947. The next prime is 12122212222007. The reversal of 12122212222000 is 22221222121.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (12122212222007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104443830 + ... + 104559829.

It is an arithmetic number, because the mean of its divisors is an integer number (379028137410).

Almost surely, 2^{12122212222000} is an apocalyptic number.

12122212222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122212222000 is an abundant number, since it is smaller than the sum of its proper divisors (18200038770800).

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

12122212222000 is a wasteful number, since it uses less digits than its factorization.

12122212222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209003711 (or 209003695 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12122212222000 its reverse (22221222121), we get a palindrome (12144433444121).

The spelling of 12122212222000 in words is "twelve trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand".