2011011112220 has 48 divisors (see below), whose sum is σ = 4612003250400. Its totient is φ = 730489528320.

The previous prime is 2011011112217. The next prime is 2011011112237. The reversal of 2011011112220 is 222111101102.

It is a junction number, because it is equal to n+sod(n) for n = 2011011112195 and 2011011112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4715405 + ... + 5124164.

It is an arithmetic number, because the mean of its divisors is an integer number (96083401050).

Almost surely, 2^{2011011112220} is an apocalyptic number.

2011011112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011011112220 is an abundant number, since it is smaller than the sum of its proper divisors (2600992138180).

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

2011011112220 is a wasteful number, since it uses less digits than its factorization.

2011011112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840518 (or 9840516 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2011011112220 its reverse (222111101102), we get a palindrome (2233122213322).

The spelling of 2011011112220 in words is "two trillion, eleven billion, eleven million, one hundred twelve thousand, two hundred twenty".