12212012212120 has 64 divisors (see below), whose sum is σ = 31404204276480. Its totient is φ = 4186723994496.

The previous prime is 12212012212109. The next prime is 12212012212193. The reversal of 12212012212120 is 2121221021221.

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 15 ways as a sum of consecutive naturals, for example, 3387007 + ... + 5991313.

It is an arithmetic number, because the mean of its divisors is an integer number (490690691820).

Almost surely, 2^{12212012212120} is an apocalyptic number.

12212012212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212012212120 is an abundant number, since it is smaller than the sum of its proper divisors (19192192064360).

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

12212012212120 is a wasteful number, since it uses less digits than its factorization.

12212012212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621072 (or 2621068 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12212012212120 its reverse (2121221021221), we get a palindrome (14333233233341).

The spelling of 12212012212120 in words is "twelve trillion, two hundred twelve billion, twelve million, two hundred twelve thousand, one hundred twenty".