2012201222120 has 128 divisors (see below), whose sum is σ = 4868843212800. Its totient is φ = 746033193216.

The previous prime is 2012201222099. The next prime is 2012201222153. The reversal of 2012201222120 is 212221022102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123690227 + ... + 123706493.

It is an arithmetic number, because the mean of its divisors is an integer number (38037837600).

Almost surely, 2^{2012201222120} is an apocalyptic number.

2012201222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012201222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2434421606400).

2012201222120 is an abundant number, since it is smaller than the sum of its proper divisors (2856641990680).

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

2012201222120 is a wasteful number, since it uses less digits than its factorization.

2012201222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19807 (or 19803 counting only the distinct ones).

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

Adding to 2012201222120 its reverse (212221022102), we get a palindrome (2224422244222).

The spelling of 2012201222120 in words is "two trillion, twelve billion, two hundred one million, two hundred twenty-two thousand, one hundred twenty".