30221200213 has 2 divisors, whose sum is σ = 30221200214. Its totient is φ = 30221200212.

The previous prime is 30221200201. The next prime is 30221200223. The reversal of 30221200213 is 31200212203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24136108164 + 6085092049 = 155358^2 + 78007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221200213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30221200223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110600106 + 15110600107.

It is an arithmetic number, because the mean of its divisors is an integer number (15110600107).

Almost surely, 2^30221200213 is an apocalyptic number.

It is an amenable number.

30221200213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221200213 is an equidigital number, since it uses as much as digits as its factorization.

30221200213 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 16.

Adding to 30221200213 its reverse (31200212203), we get a palindrome (61421412416).

The spelling of 30221200213 in words is "thirty billion, two hundred twenty-one million, two hundred thousand, two hundred thirteen".