2011220012120 has 64 divisors (see below), whose sum is σ = 4974315287040. Its totient is φ = 725769865600.

The previous prime is 2011220012111. The next prime is 2011220012141. The reversal of 2011220012120 is 212100221102.

It is a junction number, because it is equal to n+sod(n) for n = 2011220012095 and 2011220012104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17388752 + ... + 17504031.

It is an arithmetic number, because the mean of its divisors is an integer number (77723676360).

Almost surely, 2^{2011220012120} is an apocalyptic number.

2011220012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011220012120 is an abundant number, since it is smaller than the sum of its proper divisors (2963095274920).

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

2011220012120 is a wasteful number, since it uses less digits than its factorization.

2011220012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34892936 (or 34892932 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2011220012120 its reverse (212100221102), we get a palindrome (2223320233222).

The spelling of 2011220012120 in words is "two trillion, eleven billion, two hundred twenty million, twelve thousand, one hundred twenty".