1001201002112 has 16 divisors (see below), whose sum is σ = 1994580121650. Its totient is φ = 500600500992.

The previous prime is 1001201002111. The next prime is 1001201002129. The reversal of 1001201002112 is 2112001021001.

It can be written as a sum of positive squares in only one way, i.e., 901178084416 + 100022917696 = 949304^2 + 316264^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1001201002093 and 1001201002102.

It is not an unprimeable number, because it can be changed into a prime (1001201002111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3910941287 + ... + 3910941542.

Almost surely, 2^{1001201002112} is an apocalyptic number.

It is an amenable number.

1001201002112 is a deficient number, since it is larger than the sum of its proper divisors (993379119538).

1001201002112 is an frugal number, since it uses more digits than its factorization.

1001201002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821882843 (or 7821882831 counting only the distinct ones).

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

Adding to 1001201002112 its reverse (2112001021001), we get a palindrome (3113202023113).

The spelling of 1001201002112 in words is "one trillion, one billion, two hundred one million, two thousand, one hundred twelve".