30221230133 has 2 divisors, whose sum is σ = 30221230134. Its totient is φ = 30221230132.

The previous prime is 30221230129. The next prime is 30221230139. The reversal of 30221230133 is 33103212203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17430072529 + 12791157604 = 132023^2 + 113098^2 .

It is a cyclic number.

It is not a de Polignac number, because 30221230133 - 2² = 30221230129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30221230139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110615066 + 15110615067.

It is an arithmetic number, because the mean of its divisors is an integer number (15110615067).

Almost surely, 2^30221230133 is an apocalyptic number.

It is an amenable number.

30221230133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221230133 is an equidigital number, since it uses as much as digits as its factorization.

30221230133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30221230133 its reverse (33103212203), we get a palindrome (63324442336).

The spelling of 30221230133 in words is "thirty billion, two hundred twenty-one million, two hundred thirty thousand, one hundred thirty-three".