211113032300221 has 2 divisors, whose sum is σ = 211113032300222. Its totient is φ = 211113032300220.

The previous prime is 211113032300089. The next prime is 211113032300237. The reversal of 211113032300221 is 122003230311112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134365445575321 + 76747586724900 = 11591611^2 + 8760570^2 .

It is a cyclic number.

It is not a de Polignac number, because 211113032300221 - 2¹⁵ = 211113032267453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211113032300192 and 211113032300201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211113032300281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556516150110 + 105556516150111.

It is an arithmetic number, because the mean of its divisors is an integer number (105556516150111).

Almost surely, 2^{211113032300221} is an apocalyptic number.

It is an amenable number.

211113032300221 is a deficient number, since it is larger than the sum of its proper divisors (1).

211113032300221 is an equidigital number, since it uses as much as digits as its factorization.

211113032300221 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 22.

Adding to 211113032300221 its reverse (122003230311112), we get a palindrome (333116262611333).

The spelling of 211113032300221 in words is "two hundred eleven trillion, one hundred thirteen billion, thirty-two million, three hundred thousand, two hundred twenty-one".