2220111302221 has 2 divisors, whose sum is σ = 2220111302222. Its totient is φ = 2220111302220.

The previous prime is 2220111302203. The next prime is 2220111302281. The reversal of 2220111302221 is 1222031110222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2206000238121 + 14111064100 = 1485261^2 + 118790^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220111302221 - 2¹³ = 2220111294029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220111302281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110055651110 + 1110055651111.

It is an arithmetic number, because the mean of its divisors is an integer number (1110055651111).

Almost surely, 2^{2220111302221} is an apocalyptic number.

It is an amenable number.

2220111302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220111302221 is an equidigital number, since it uses as much as digits as its factorization.

2220111302221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2220111302221 its reverse (1222031110222), we get a palindrome (3442142412443).

The spelling of 2220111302221 in words is "two trillion, two hundred twenty billion, one hundred eleven million, three hundred two thousand, two hundred twenty-one".