2134330221 has 4 divisors (see below), whose sum is σ = 2845773632. Its totient is φ = 1422886812.

The previous prime is 2134330201. The next prime is 2134330243. The reversal of 2134330221 is 1220334312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2134330221 - 2⁵ = 2134330189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134330201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355721701 + ... + 355721706.

It is an arithmetic number, because the mean of its divisors is an integer number (711443408).

Almost surely, 2^2134330221 is an apocalyptic number.

It is an amenable number.

2134330221 is a deficient number, since it is larger than the sum of its proper divisors (711443411).

2134330221 is an equidigital number, since it uses as much as digits as its factorization.

2134330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711443410.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2134330221 is about 46198.8119003076. The cubic root of 2134330221 is about 1287.5196658447.

Adding to 2134330221 its reverse (1220334312), we get a palindrome (3354664533).

The spelling of 2134330221 in words is "two billion, one hundred thirty-four million, three hundred thirty thousand, two hundred twenty-one".