2001200220112 has 20 divisors (see below), whose sum is σ = 3877368474276. Its totient is φ = 1000589000960.

The previous prime is 2001200220109. The next prime is 2001200220113. The reversal of 2001200220112 is 2110220021002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1826238715456 + 174961504656 = 1351384^2 + 418284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001200220092 and 2001200220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001200220113) 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, 903228 + ... + 2195044.

Almost surely, 2^{2001200220112} is an apocalyptic number.

It is an amenable number.

2001200220112 is a deficient number, since it is larger than the sum of its proper divisors (1876168254164).

2001200220112 is a wasteful number, since it uses less digits than its factorization.

2001200220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388646 (or 1388640 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001200220112 its reverse (2110220021002), we get a palindrome (4111420241114).

The spelling of 2001200220112 in words is "two trillion, one billion, two hundred million, two hundred twenty thousand, one hundred twelve".