2111300221 has 2 divisors, whose sum is σ = 2111300222. Its totient is φ = 2111300220.

The previous prime is 2111300183. The next prime is 2111300237. The reversal of 2111300221 is 1220031112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1901919321 + 209380900 = 43611^2 + 14470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111300221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111300281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055650110 + 1055650111.

It is an arithmetic number, because the mean of its divisors is an integer number (1055650111).

Almost surely, 2^2111300221 is an apocalyptic number.

It is an amenable number.

2111300221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111300221 is an equidigital number, since it uses as much as digits as its factorization.

2111300221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2111300221 is about 45948.8870485456. The cubic root of 2111300221 is about 1282.8720139988.

Adding to 2111300221 its reverse (1220031112), we get a palindrome (3331331333).

The spelling of 2111300221 in words is "two billion, one hundred eleven million, three hundred thousand, two hundred twenty-one".