2002111111992 has 64 divisors (see below), whose sum is σ = 5013223372800. Its totient is φ = 666311817600.

The previous prime is 2002111111967. The next prime is 2002111111993. The reversal of 2002111111992 is 2991111112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002111111993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39115617 + ... + 39166767.

It is an arithmetic number, because the mean of its divisors is an integer number (78331615200).

Almost surely, 2^{2002111111992} is an apocalyptic number.

It is an amenable number.

2002111111992 is an abundant number, since it is smaller than the sum of its proper divisors (3011112260808).

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

2002111111992 is a wasteful number, since it uses less digits than its factorization.

2002111111992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53716 (or 53712 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 30.

Adding to 2002111111992 its reverse (2991111112002), we get a palindrome (4993222223994).

The spelling of 2002111111992 in words is "two trillion, two billion, one hundred eleven million, one hundred eleven thousand, nine hundred ninety-two".