221536051401319 has 2 divisors, whose sum is σ = 221536051401320. Its totient is φ = 221536051401318.

The previous prime is 221536051401299. The next prime is 221536051401347. The reversal of 221536051401319 is 913104150635122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221536051401319 - 2³⁷ = 221398612447847 is a prime.

It is a super-2 number, since 2×221536051401319² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221536051401359) 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, 110768025700659 + 110768025700660.

It is an arithmetic number, because the mean of its divisors is an integer number (110768025700660).

Almost surely, 2^{221536051401319} is an apocalyptic number.

221536051401319 is a deficient number, since it is larger than the sum of its proper divisors (1).

221536051401319 is an equidigital number, since it uses as much as digits as its factorization.

221536051401319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 221536051401319 in words is "two hundred twenty-one trillion, five hundred thirty-six billion, fifty-one million, four hundred one thousand, three hundred nineteen".