2002020200421 has 16 divisors (see below), whose sum is σ = 2676560947200. Its totient is φ = 1331080209648.

The previous prime is 2002020200393. The next prime is 2002020200423. The reversal of 2002020200421 is 1240020202002.

It is not a de Polignac number, because 2002020200421 - 2⁷ = 2002020200293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002020200421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002020200423) 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, 24312300 + ... + 24394506.

It is an arithmetic number, because the mean of its divisors is an integer number (167285059200).

Almost surely, 2^{2002020200421} is an apocalyptic number.

It is an amenable number.

2002020200421 is a deficient number, since it is larger than the sum of its proper divisors (674540746779).

2002020200421 is a wasteful number, since it uses less digits than its factorization.

2002020200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104008.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2002020200421 its reverse (1240020202002), we get a palindrome (3242040402423).

The spelling of 2002020200421 in words is "two trillion, two billion, twenty million, two hundred thousand, four hundred twenty-one".