221223144319 has 2 divisors, whose sum is σ = 221223144320. Its totient is φ = 221223144318.

The previous prime is 221223144301. The next prime is 221223144413. The reversal of 221223144319 is 913441322122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221223144319 - 2⁹ = 221223143807 is a prime.

It is a super-2 number, since 2×221223144319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221223544319) 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, 110611572159 + 110611572160.

It is an arithmetic number, because the mean of its divisors is an integer number (110611572160).

Almost surely, 2^221223144319 is an apocalyptic number.

221223144319 is a deficient number, since it is larger than the sum of its proper divisors (1).

221223144319 is an equidigital number, since it uses as much as digits as its factorization.

221223144319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The spelling of 221223144319 in words is "two hundred twenty-one billion, two hundred twenty-three million, one hundred forty-four thousand, three hundred nineteen".