2001021112 has 16 divisors (see below), whose sum is σ = 3881291400. Its totient is φ = 966010080.

The previous prime is 2001021109. The next prime is 2001021149. The reversal of 2001021112 is 2111201002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4312314 + ... + 4312777.

Almost surely, 2^2001021112 is an apocalyptic number.

It is an amenable number.

2001021112 is a deficient number, since it is larger than the sum of its proper divisors (1880270288).

2001021112 is a wasteful number, since it uses less digits than its factorization.

2001021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625126 (or 8625122 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2001021112 is about 44732.7744724156. The cubic root of 2001021112 is about 1260.1354334979.

Adding to 2001021112 its reverse (2111201002), we get a palindrome (4112222114).

The spelling of 2001021112 in words is "two billion, one million, twenty-one thousand, one hundred twelve".