221534447746063 has 2 divisors, whose sum is σ = 221534447746064. Its totient is φ = 221534447746062.

The previous prime is 221534447746021. The next prime is 221534447746069. The reversal of 221534447746063 is 360647744435122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221534447746063 - 2¹³ = 221534447737871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221534447745989 and 221534447746007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221534447746069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110767223873031 + 110767223873032.

It is an arithmetic number, because the mean of its divisors is an integer number (110767223873032).

Almost surely, 2^{221534447746063} is an apocalyptic number.

221534447746063 is a deficient number, since it is larger than the sum of its proper divisors (1).

221534447746063 is an equidigital number, since it uses as much as digits as its factorization.

221534447746063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81285120, while the sum is 58.

The spelling of 221534447746063 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred forty-seven million, seven hundred forty-six thousand, sixty-three".