223052221 has 4 divisors (see below), whose sum is σ = 254916832. Its totient is φ = 191187612.

The previous prime is 223052213. The next prime is 223052227. The reversal of 223052221 is 122250322.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122250322 = 2 ⋅61125161.

It is not a de Polignac number, because 223052221 - 2³ = 223052213 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 (223052227) 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, 15932295 + ... + 15932308.

It is an arithmetic number, because the mean of its divisors is an integer number (63729208).

Almost surely, 2^223052221 is an apocalyptic number.

It is an amenable number.

223052221 is a deficient number, since it is larger than the sum of its proper divisors (31864611).

223052221 is an equidigital number, since it uses as much as digits as its factorization.

223052221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31864610.

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

The square root of 223052221 is about 14934.9329091228. The cubic root of 223052221 is about 606.4600312982.

The spelling of 223052221 in words is "two hundred twenty-three million, fifty-two thousand, two hundred twenty-one".