2211220222120 has 128 divisors (see below), whose sum is σ = 6129656467200. Its totient is φ = 699097337856.

The previous prime is 2211220222117. The next prime is 2211220222121. The reversal of 2211220222120 is 212220221122.

2211220222120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2211220222121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3245391 + ... + 3867169.

It is an arithmetic number, because the mean of its divisors is an integer number (47887941150).

Almost surely, 2^{2211220222120} is an apocalyptic number.

2211220222120 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 2211220222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064828233600).

2211220222120 is an abundant number, since it is smaller than the sum of its proper divisors (3918436245080).

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

2211220222120 is a wasteful number, since it uses less digits than its factorization.

2211220222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622787 (or 622783 counting only the distinct ones).

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

Adding to 2211220222120 its reverse (212220221122), we get a palindrome (2423440443242).

The spelling of 2211220222120 in words is "two trillion, two hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty".