103221030221 has 2 divisors, whose sum is σ = 103221030222. Its totient is φ = 103221030220.

The previous prime is 103221030191. The next prime is 103221030307. The reversal of 103221030221 is 122030122301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79911374596 + 23309655625 = 282686^2 + 152675^2 .

It is an emirp because it is prime and its reverse (122030122301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103221030221 - 2²⁶ = 103153921357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103221030221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103221030421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51610515110 + 51610515111.

It is an arithmetic number, because the mean of its divisors is an integer number (51610515111).

Almost surely, 2^103221030221 is an apocalyptic number.

It is an amenable number.

103221030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103221030221 is an equidigital number, since it uses as much as digits as its factorization.

103221030221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103221030221 its reverse (122030122301), we get a palindrome (225251152522).

The spelling of 103221030221 in words is "one hundred three billion, two hundred twenty-one million, thirty thousand, two hundred twenty-one".