2232520221 has 8 divisors (see below), whose sum is σ = 2980186720. Its totient is φ = 1486600272.

The previous prime is 2232520201. The next prime is 2232520243. The reversal of 2232520221 is 1220252322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2232520221 - 2¹⁴ = 2232503837 is a prime.

It is a super-3 number, since 3×2232520221³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232520201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433651 + ... + 438768.

It is an arithmetic number, because the mean of its divisors is an integer number (372523340).

Almost surely, 2^2232520221 is an apocalyptic number.

It is an amenable number.

2232520221 is a deficient number, since it is larger than the sum of its proper divisors (747666499).

2232520221 is an equidigital number, since it uses as much as digits as its factorization.

2232520221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873275.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2232520221 is about 47249.5526010564. The cubic root of 2232520221 is about 1306.9685397385.

Adding to 2232520221 its reverse (1220252322), we get a palindrome (3452772543).

The spelling of 2232520221 in words is "two billion, two hundred thirty-two million, five hundred twenty thousand, two hundred twenty-one".