2100021330 has 32 divisors (see below), whose sum is σ = 5498238528. Its totient is φ = 509096000.

The previous prime is 2100021323. The next prime is 2100021331. The reversal of 2100021330 is 331200012.

It is a happy number.

2100021330 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2100021331) 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, 3181521 + ... + 3182180.

It is an arithmetic number, because the mean of its divisors is an integer number (171819954).

Almost surely, 2^2100021330 is an apocalyptic number.

2100021330 is an abundant number, since it is smaller than the sum of its proper divisors (3398217198).

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

2100021330 is a wasteful number, since it uses less digits than its factorization.

2100021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6363722.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2100021330 is about 45825.9896783474. The cubic root of 2100021330 is about 1280.5835006480.

Adding to 2100021330 its reverse (331200012), we get a palindrome (2431221342).

The spelling of 2100021330 in words is "two billion, one hundred million, twenty-one thousand, three hundred thirty".