2001211112 has 32 divisors (see below), whose sum is σ = 3809203200. Its totient is φ = 985454400.

The previous prime is 2001211111. The next prime is 2001211127. The reversal of 2001211112 is 2111121002.

It is a junction number, because it is equal to n+sod(n) for n = 2001211093 and 2001211102.

It is not an unprimeable number, because it can be changed into a prime (2001211111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946937 + ... + 949047.

It is an arithmetic number, because the mean of its divisors is an integer number (119037600).

Almost surely, 2^2001211112 is an apocalyptic number.

It is an amenable number.

2001211112 is a deficient number, since it is larger than the sum of its proper divisors (1807992088).

2001211112 is a wasteful number, since it uses less digits than its factorization.

2001211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2001211112 is about 44734.8981445135. The cubic root of 2001211112 is about 1260.1753161614.

Adding to 2001211112 its reverse (2111121002), we get a palindrome (4112332114).

The spelling of 2001211112 in words is "two billion, one million, two hundred eleven thousand, one hundred twelve".