2011221112 has 16 divisors (see below), whose sum is σ = 3858738840. Its totient is φ = 982224096.

The previous prime is 2011221073. The next prime is 2011221119. The reversal of 2011221112 is 2111221102.

It is a super-2 number, since 2×2011221112² = 8090020722709033088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011221092 and 2011221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922943 + ... + 2923630.

Almost surely, 2^2011221112 is an apocalyptic number.

It is an amenable number.

2011221112 is a deficient number, since it is larger than the sum of its proper divisors (1847517728).

2011221112 is a wasteful number, since it uses less digits than its factorization.

2011221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846622 (or 5846618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2011221112 is about 44846.6399187275. The cubic root of 2011221112 is about 1262.2729427567.

Adding to 2011221112 its reverse (2111221102), we get a palindrome (4122442214).

The spelling of 2011221112 in words is "two billion, eleven million, two hundred twenty-one thousand, one hundred twelve".