2011222120120 has 16 divisors (see below), whose sum is σ = 4525249770360. Its totient is φ = 804488848032.

The previous prime is 2011222120087. The next prime is 2011222120211. The reversal of 2011222120120 is 210212221102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2011222120094 and 2011222120103.

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 3 ways as a sum of consecutive naturals, for example, 25140276462 + ... + 25140276541.

Almost surely, 2^{2011222120120} is an apocalyptic number.

2011222120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011222120120 is an abundant number, since it is smaller than the sum of its proper divisors (2514027650240).

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

2011222120120 is a wasteful number, since it uses less digits than its factorization.

2011222120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50280553014 (or 50280553010 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2011222120120 its reverse (210212221102), we get a palindrome (2221434341222).

The spelling of 2011222120120 in words is "two trillion, eleven billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty".