2012221112 has 16 divisors (see below), whose sum is σ = 4115907000. Its totient is φ = 914645920.

The previous prime is 2012221111. The next prime is 2012221121. The reversal of 2012221112 is 2111222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012221111) 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, 11432987 + ... + 11433162.

Almost surely, 2^2012221112 is an apocalyptic number.

2012221112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2012221112 is an abundant number, since it is smaller than the sum of its proper divisors (2103685888).

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

2012221112 is a wasteful number, since it uses less digits than its factorization.

2012221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22866166 (or 22866162 counting only the distinct ones).

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

The square root of 2012221112 is about 44857.7876404978. The cubic root of 2012221112 is about 1262.4821131603.

Adding to 2012221112 its reverse (2111222102), we get a palindrome (4123443214).

The spelling of 2012221112 in words is "two billion, twelve million, two hundred twenty-one thousand, one hundred twelve".