2002101992 has 64 divisors (see below), whose sum is σ = 4183876800. Its totient is φ = 890560000.

The previous prime is 2002101947. The next prime is 2002102009. The reversal of 2002101992 is 2991012002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789767 + ... + 792297.

It is an arithmetic number, because the mean of its divisors is an integer number (65373075).

Almost surely, 2^2002101992 is an apocalyptic number.

2002101992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2002101992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2091938400).

2002101992 is an abundant number, since it is smaller than the sum of its proper divisors (2181774808).

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

2002101992 is a wasteful number, since it uses less digits than its factorization.

2002101992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 2002101992 is about 44744.8543633790. The cubic root of 2002101992 is about 1260.3622860131.

Adding to 2002101992 its reverse (2991012002), we get a palindrome (4993113994).

It can be divided in two parts, 200210 and 1992, that added together give a palindrome (202202).

The spelling of 2002101992 in words is "two billion, two million, one hundred one thousand, nine hundred ninety-two".