223000100221 has 2 divisors, whose sum is σ = 223000100222. Its totient is φ = 223000100220.

The previous prime is 223000100209. The next prime is 223000100237. The reversal of 223000100221 is 122001000322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180103476996 + 42896623225 = 424386^2 + 207115^2 .

It is a cyclic number.

It is not a de Polignac number, because 223000100221 - 2⁷ = 223000100093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223000100621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111500050110 + 111500050111.

It is an arithmetic number, because the mean of its divisors is an integer number (111500050111).

Almost surely, 2^223000100221 is an apocalyptic number.

It is an amenable number.

223000100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

223000100221 is an equidigital number, since it uses as much as digits as its factorization.

223000100221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 223000100221 its reverse (122001000322), we get a palindrome (345001100543).

The spelling of 223000100221 in words is "two hundred twenty-three billion, one hundred thousand, two hundred twenty-one".