30244130221 has 2 divisors, whose sum is σ = 30244130222. Its totient is φ = 30244130220.

The previous prime is 30244130219. The next prime is 30244130227. The reversal of 30244130221 is 12203144203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23488934121 + 6755196100 = 153261^2 + 82190^2 .

It is a cyclic number.

It is not a de Polignac number, because 30244130221 - 2¹ = 30244130219 is a prime.

Together with 30244130219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 30244130192 and 30244130201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30244130227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15122065110 + 15122065111.

It is an arithmetic number, because the mean of its divisors is an integer number (15122065111).

Almost surely, 2^30244130221 is an apocalyptic number.

It is an amenable number.

30244130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30244130221 is an equidigital number, since it uses as much as digits as its factorization.

30244130221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 30244130221 its reverse (12203144203), we get a palindrome (42447274424).

The spelling of 30244130221 in words is "thirty billion, two hundred forty-four million, one hundred thirty thousand, two hundred twenty-one".