2202530221 has 4 divisors (see below), whose sum is σ = 2203015392. Its totient is φ = 2202045052.

The previous prime is 2202530207. The next prime is 2202530227. The reversal of 2202530221 is 1220352022.

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 a cyclic number.

It is not a de Polignac number, because 2202530221 - 2⁹ = 2202529709 is a prime.

It is a super-2 number, since 2×2202530221² = 9702278748836617682, which contains 22 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 (2202530227) 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 3 ways as a sum of consecutive naturals, for example, 235711 + ... + 244876.

It is an arithmetic number, because the mean of its divisors is an integer number (550753848).

Almost surely, 2^2202530221 is an apocalyptic number.

It is an amenable number.

2202530221 is a deficient number, since it is larger than the sum of its proper divisors (485171).

2202530221 is an equidigital number, since it uses as much as digits as its factorization.

2202530221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485170.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2202530221 is about 46931.1220939794. The cubic root of 2202530221 is about 1301.0898594301.

Adding to 2202530221 its reverse (1220352022), we get a palindrome (3422882243).

The spelling of 2202530221 in words is "two billion, two hundred two million, five hundred thirty thousand, two hundred twenty-one".