221222210303 has 2 divisors, whose sum is σ = 221222210304. Its totient is φ = 221222210302.

The previous prime is 221222210273. The next prime is 221222210399. The reversal of 221222210303 is 303012222122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221222210303 - 2¹⁴ = 221222193919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221222210203) 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, 110611105151 + 110611105152.

It is an arithmetic number, because the mean of its divisors is an integer number (110611105152).

Almost surely, 2^221222210303 is an apocalyptic number.

221222210303 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222210303 is an equidigital number, since it uses as much as digits as its factorization.

221222210303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221222210303 its reverse (303012222122), we get a palindrome (524234432425).

The spelling of 221222210303 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred ten thousand, three hundred three".