2001111110992 has 40 divisors (see below), whose sum is σ = 4438404660032. Its totient is φ = 856192032000.

The previous prime is 2001111110983. The next prime is 2001111111001. The reversal of 2001111110992 is 2990111111002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2001111110983) and next prime (2001111111001).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 2001111110992.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14797134 + ... + 14931757.

Almost surely, 2^{2001111110992} is an apocalyptic number.

It is an amenable number.

2001111110992 is an abundant number, since it is smaller than the sum of its proper divisors (2437293549040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001111110992 is a wasteful number, since it uses less digits than its factorization.

2001111110992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29729507 (or 29729501 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 28.

Adding to 2001111110992 its reverse (2990111111002), we get a palindrome (4991222221994).

The spelling of 2001111110992 in words is "two trillion, one billion, one hundred eleven million, one hundred ten thousand, nine hundred ninety-two".