223032230221 has 4 divisors (see below), whose sum is σ = 223107302944. Its totient is φ = 222957157500.

The previous prime is 223032230177. The next prime is 223032230251. The reversal of 223032230221 is 122032230322.

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: 122032230322 = 2 ⋅61016115161.

It is a cyclic number.

It is not a de Polignac number, because 223032230221 - 2⁹ = 223032229709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223032230192 and 223032230201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223032230251) 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, 37531905 + ... + 37537846.

It is an arithmetic number, because the mean of its divisors is an integer number (55776825736).

Almost surely, 2^223032230221 is an apocalyptic number.

It is an amenable number.

223032230221 is a deficient number, since it is larger than the sum of its proper divisors (75072723).

223032230221 is an equidigital number, since it uses as much as digits as its factorization.

223032230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75072722.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 223032230221 its reverse (122032230322), we get a palindrome (345064460543).

The spelling of 223032230221 in words is "two hundred twenty-three billion, thirty-two million, two hundred thirty thousand, two hundred twenty-one".