30221213133253 has 2 divisors, whose sum is σ = 30221213133254. Its totient is φ = 30221213133252.

The previous prime is 30221213133161. The next prime is 30221213133263. The reversal of 30221213133253 is 35233131212203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21011790835044 + 9209422298209 = 4583862^2 + 3034703^2 .

It is a cyclic number.

It is not a de Polignac number, because 30221213133253 - 2²¹ = 30221211036101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30221213133263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110606566626 + 15110606566627.

It is an arithmetic number, because the mean of its divisors is an integer number (15110606566627).

Almost surely, 2^{30221213133253} is an apocalyptic number.

It is an amenable number.

30221213133253 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221213133253 is an equidigital number, since it uses as much as digits as its factorization.

30221213133253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 30221213133253 its reverse (35233131212203), we get a palindrome (65454344345456).

The spelling of 30221213133253 in words is "thirty trillion, two hundred twenty-one billion, two hundred thirteen million, one hundred thirty-three thousand, two hundred fifty-three".