221541216230063 has 2 divisors, whose sum is σ = 221541216230064. Its totient is φ = 221541216230062.

The previous prime is 221541216230057. The next prime is 221541216230119. The reversal of 221541216230063 is 360032612145122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221541216230063 - 2⁸ = 221541216229807 is a prime.

It is a super-2 number, since 2×221541216230063² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 221541216229999 and 221541216230026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221541216530063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110770608115031 + 110770608115032.

It is an arithmetic number, because the mean of its divisors is an integer number (110770608115032).

Almost surely, 2^{221541216230063} is an apocalyptic number.

221541216230063 is a deficient number, since it is larger than the sum of its proper divisors (1).

221541216230063 is an equidigital number, since it uses as much as digits as its factorization.

221541216230063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 221541216230063 its reverse (360032612145122), we get a palindrome (581573828375185).

The spelling of 221541216230063 in words is "two hundred twenty-one trillion, five hundred forty-one billion, two hundred sixteen million, two hundred thirty thousand, sixty-three".