30223211321221 has 2 divisors, whose sum is σ = 30223211321222. Its totient is φ = 30223211321220.

The previous prime is 30223211321201. The next prime is 30223211321249. The reversal of 30223211321221 is 12212311232203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29444069685121 + 779141636100 = 5426239^2 + 882690^2 .

It is a cyclic number.

It is not a de Polignac number, because 30223211321221 - 2¹⁵ = 30223211288453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30223211321201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15111605660610 + 15111605660611.

It is an arithmetic number, because the mean of its divisors is an integer number (15111605660611).

Almost surely, 2^{30223211321221} is an apocalyptic number.

It is an amenable number.

30223211321221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30223211321221 is an equidigital number, since it uses as much as digits as its factorization.

30223211321221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 30223211321221 its reverse (12212311232203), we get a palindrome (42435522553424).

The spelling of 30223211321221 in words is "thirty trillion, two hundred twenty-three billion, two hundred eleven million, three hundred twenty-one thousand, two hundred twenty-one".