12212120022200 has 48 divisors (see below), whose sum is σ = 32449347491280. Its totient is φ = 4187012578560.

The previous prime is 12212120022199. The next prime is 12212120022227. The reversal of 12212120022200 is 222002121221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4361470037 + ... + 4361472836.

It is an arithmetic number, because the mean of its divisors is an integer number (676028072735).

Almost surely, 2^{12212120022200} is an apocalyptic number.

12212120022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212120022200 is an abundant number, since it is smaller than the sum of its proper divisors (20237227469080).

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

12212120022200 is a wasteful number, since it uses less digits than its factorization.

12212120022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8722942896 (or 8722942887 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12212120022200 its reverse (222002121221), we get a palindrome (12434122143421).

The spelling of 12212120022200 in words is "twelve trillion, two hundred twelve billion, one hundred twenty million, twenty-two thousand, two hundred".