2002021100 has 36 divisors (see below), whose sum is σ = 4349372664. Its totient is φ = 799889280.

The previous prime is 2002021097. The next prime is 2002021129. The reversal of 2002021100 is 11202002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79664 + ... + 101736.

Almost surely, 2^2002021100 is an apocalyptic number.

2002021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002021100 is an abundant number, since it is smaller than the sum of its proper divisors (2347351564).

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

2002021100 is a wasteful number, since it uses less digits than its factorization.

2002021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22994 (or 22987 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2002021100 is about 44743.9504290804. The cubic root of 2002021100 is about 1260.3453114201.

Adding to 2002021100 its reverse (11202002), we get a palindrome (2013223102).

The spelling of 2002021100 in words is "two billion, two million, twenty-one thousand, one hundred".