30461100221 has 2 divisors, whose sum is σ = 30461100222. Its totient is φ = 30461100220.

The previous prime is 30461100209. The next prime is 30461100233. The reversal of 30461100221 is 12200116403.

It is a balanced prime because it is at equal distance from previous prime (30461100209) and next prime (30461100233).

It can be written as a sum of positive squares in only one way, i.e., 30410476996 + 50623225 = 174386^2 + 7115^2 .

It is a cyclic number.

It is not a de Polignac number, because 30461100221 - 2¹⁰ = 30461099197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30461100193 and 30461100202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30461100721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15230550110 + 15230550111.

It is an arithmetic number, because the mean of its divisors is an integer number (15230550111).

Almost surely, 2^30461100221 is an apocalyptic number.

It is an amenable number.

30461100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30461100221 is an equidigital number, since it uses as much as digits as its factorization.

30461100221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30461100221 its reverse (12200116403), we get a palindrome (42661216624).

The spelling of 30461100221 in words is "thirty billion, four hundred sixty-one million, one hundred thousand, two hundred twenty-one".