221423319319 has 2 divisors, whose sum is σ = 221423319320. Its totient is φ = 221423319318.

The previous prime is 221423319307. The next prime is 221423319353. The reversal of 221423319319 is 913913324122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221423319319 - 2²¹ = 221421222167 is a prime.

It is a super-2 number, since 2×221423319319² (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 (221423314319) 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, 110711659659 + 110711659660.

It is an arithmetic number, because the mean of its divisors is an integer number (110711659660).

Almost surely, 2^221423319319 is an apocalyptic number.

221423319319 is a deficient number, since it is larger than the sum of its proper divisors (1).

221423319319 is an equidigital number, since it uses as much as digits as its factorization.

221423319319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The spelling of 221423319319 in words is "two hundred twenty-one billion, four hundred twenty-three million, three hundred nineteen thousand, three hundred nineteen".