1002002112112 has 20 divisors (see below), whose sum is σ = 1941423140520. Its totient is φ = 500989688768.

The previous prime is 1002002112109. The next prime is 1002002112119. The reversal of 1002002112112 is 2112112002001.

It is a junction number, because it is equal to n+sod(n) for n = 1002002112092 and 1002002112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002002112119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40839 + ... + 1416217.

It is an arithmetic number, because the mean of its divisors is an integer number (97071157026).

Almost surely, 2^{1002002112112} is an apocalyptic number.

It is an amenable number.

1002002112112 is a deficient number, since it is larger than the sum of its proper divisors (939421028408).

1002002112112 is a wasteful number, since it uses less digits than its factorization.

1002002112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420920 (or 1420914 counting only the distinct ones).

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

Adding to 1002002112112 its reverse (2112112002001), we get a palindrome (3114114114113).

The spelling of 1002002112112 in words is "one trillion, two billion, two million, one hundred twelve thousand, one hundred twelve".