2001120021112 has 16 divisors (see below), whose sum is σ = 3780742026600. Its totient is φ = 992922147360.

The previous prime is 2001120021101. The next prime is 2001120021119. The reversal of 2001120021112 is 2111200211002.

It is a junction number, because it is equal to n+sod(n) for n = 2001120021092 and 2001120021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001120021119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954731787 + ... + 954733882.

Almost surely, 2^{2001120021112} is an apocalyptic number.

It is an amenable number.

2001120021112 is a deficient number, since it is larger than the sum of its proper divisors (1779622005488).

2001120021112 is a wasteful number, since it uses less digits than its factorization.

2001120021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909465806 (or 1909465802 counting only the distinct ones).

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

Adding to 2001120021112 its reverse (2111200211002), we get a palindrome (4112320232114).

The spelling of 2001120021112 in words is "two trillion, one billion, one hundred twenty million, twenty-one thousand, one hundred twelve".