2002112001992 has 8 divisors (see below), whose sum is σ = 3753960003750. Its totient is φ = 1001056000992.

The previous prime is 2002112001943. The next prime is 2002112002049. The reversal of 2002112001992 is 2991002112002.

It can be written as a sum of positive squares in only one way, i.e., 1762378382116 + 239733619876 = 1327546^2 + 489626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125132000117 + ... + 125132000132.

Almost surely, 2^{2002112001992} is an apocalyptic number.

It is an amenable number.

2002112001992 is a deficient number, since it is larger than the sum of its proper divisors (1751848001758).

2002112001992 is a wasteful number, since it uses less digits than its factorization.

2002112001992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250264000255 (or 250264000251 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

Adding to 2002112001992 its reverse (2991002112002), we get a palindrome (4993114113994).

The spelling of 2002112001992 in words is "two trillion, two billion, one hundred twelve million, one thousand, nine hundred ninety-two".