30231001302221 has 2 divisors, whose sum is σ = 30231001302222. Its totient is φ = 30231001302220.

The previous prime is 30231001302211. The next prime is 30231001302251. The reversal of 30231001302221 is 12220310013203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20548859617225 + 9682141684996 = 4533085^2 + 3111614^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231001302221 - 2¹⁸ = 30231001040077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30231001302193 and 30231001302202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30231001302211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115500651110 + 15115500651111.

It is an arithmetic number, because the mean of its divisors is an integer number (15115500651111).

Almost surely, 2^{30231001302221} is an apocalyptic number.

It is an amenable number.

30231001302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231001302221 is an equidigital number, since it uses as much as digits as its factorization.

30231001302221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30231001302221 its reverse (12220310013203), we get a palindrome (42451311315424).

The spelling of 30231001302221 in words is "thirty trillion, two hundred thirty-one billion, one million, three hundred two thousand, two hundred twenty-one".