2001120101012 has 6 divisors (see below), whose sum is σ = 3501960176778. Its totient is φ = 1000560050504.

The previous prime is 2001120101011. The next prime is 2001120101017. The reversal of 2001120101012 is 2101010211002.

It can be written as a sum of positive squares in only one way, i.e., 1939791559696 + 61328541316 = 1392764^2 + 247646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001120100984 and 2001120101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001120101011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250140012623 + ... + 250140012630.

It is an arithmetic number, because the mean of its divisors is an integer number (583660029463).

Almost surely, 2^{2001120101012} is an apocalyptic number.

It is an amenable number.

2001120101012 is a deficient number, since it is larger than the sum of its proper divisors (1500840075766).

2001120101012 is a wasteful number, since it uses less digits than its factorization.

2001120101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500280025257 (or 500280025255 counting only the distinct ones).

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

Adding to 2001120101012 its reverse (2101010211002), we get a palindrome (4102130312014).

The spelling of 2001120101012 in words is "two trillion, one billion, one hundred twenty million, one hundred one thousand, twelve".