223302101221 has 2 divisors, whose sum is σ = 223302101222. Its totient is φ = 223302101220.

The previous prime is 223302101153. The next prime is 223302101227. The reversal of 223302101221 is 122101203322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198617292225 + 24684808996 = 445665^2 + 157114^2 .

It is a cyclic number.

It is not a de Polignac number, because 223302101221 - 2²⁵ = 223268546789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223302101227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111651050610 + 111651050611.

It is an arithmetic number, because the mean of its divisors is an integer number (111651050611).

Almost surely, 2^223302101221 is an apocalyptic number.

It is an amenable number.

223302101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

223302101221 is an equidigital number, since it uses as much as digits as its factorization.

223302101221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 223302101221 its reverse (122101203322), we get a palindrome (345403304543).

The spelling of 223302101221 in words is "two hundred twenty-three billion, three hundred two million, one hundred one thousand, two hundred twenty-one".