221310220320019 has 2 divisors, whose sum is σ = 221310220320020. Its totient is φ = 221310220320018.

The previous prime is 221310220319983. The next prime is 221310220320031. The reversal of 221310220320019 is 910023022013122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221310220320019 - 2¹¹ = 221310220317971 is a prime.

It is a super-2 number, since 2×221310220320019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221310220320619) 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, 110655110160009 + 110655110160010.

It is an arithmetic number, because the mean of its divisors is an integer number (110655110160010).

Almost surely, 2^{221310220320019} is an apocalyptic number.

221310220320019 is a deficient number, since it is larger than the sum of its proper divisors (1).

221310220320019 is an equidigital number, since it uses as much as digits as its factorization.

221310220320019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 221310220320019 in words is "two hundred twenty-one trillion, three hundred ten billion, two hundred twenty million, three hundred twenty thousand, nineteen".