2002110021 has 8 divisors (see below), whose sum is σ = 2966088960. Its totient is φ = 1334739996.

The previous prime is 2002110007. The next prime is 2002110029. The reversal of 2002110021 is 1200112002.

It is not a de Polignac number, because 2002110021 - 2¹⁴ = 2002093637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2002109985 and 2002110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002110029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37076085 + ... + 37076138.

It is an arithmetic number, because the mean of its divisors is an integer number (370761120).

Almost surely, 2^2002110021 is an apocalyptic number.

It is an amenable number.

2002110021 is a deficient number, since it is larger than the sum of its proper divisors (963978939).

2002110021 is an equidigital number, since it uses as much as digits as its factorization.

2002110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74152232 (or 74152226 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2002110021 is about 44744.9440831028. The cubic root of 2002110021 is about 1260.3639708149.

Adding to 2002110021 its reverse (1200112002), we get a palindrome (3202222023).

The spelling of 2002110021 in words is "two billion, two million, one hundred ten thousand, twenty-one".