1001021002112 has 16 divisors (see below), whose sum is σ = 1994221527900. Its totient is φ = 500510500992.

The previous prime is 1001021002109. The next prime is 1001021002129. The reversal of 1001021002112 is 2112001201001.

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 = 1001021002093 and 1001021002102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3910238162 + ... + 3910238417.

Almost surely, 2^{1001021002112} is an apocalyptic number.

It is an amenable number.

1001021002112 is a deficient number, since it is larger than the sum of its proper divisors (993200525788).

1001021002112 is an frugal number, since it uses more digits than its factorization.

1001021002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820476593 (or 7820476581 counting only the distinct ones).

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

Adding to 1001021002112 its reverse (2112001201001), we get a palindrome (3113022203113).

The spelling of 1001021002112 in words is "one trillion, one billion, twenty-one million, two thousand, one hundred twelve".