222112020102221 has 2 divisors, whose sum is σ = 222112020102222. Its totient is φ = 222112020102220.

The previous prime is 222112020102157. The next prime is 222112020102257. The reversal of 222112020102221 is 122201020211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200737579539721 + 21374440562500 = 14168189^2 + 4623250^2 .

It is a cyclic number.

It is not a de Polignac number, because 222112020102221 - 2⁶ = 222112020102157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222112020102193 and 222112020102202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222112020105221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056010051110 + 111056010051111.

It is an arithmetic number, because the mean of its divisors is an integer number (111056010051111).

Almost surely, 2^{222112020102221} is an apocalyptic number.

It is an amenable number.

222112020102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112020102221 is an equidigital number, since it uses as much as digits as its factorization.

222112020102221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222112020102221 its reverse (122201020211222), we get a palindrome (344313040313443).

The spelling of 222112020102221 in words is "two hundred twenty-two trillion, one hundred twelve billion, twenty million, one hundred two thousand, two hundred twenty-one".