221541216230067 has 16 divisors (see below), whose sum is σ = 295671229612032. Its totient is φ = 147552683794560.

The previous prime is 221541216230063. The next prime is 221541216230119. The reversal of 221541216230067 is 760032612145122.

It is a happy number.

It is not a de Polignac number, because 221541216230067 - 2² = 221541216230063 is a prime.

It is a super-4 number, since 4×221541216230067⁴ (a number of 58 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (221541216230063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85753467 + ... + 88299147.

It is an arithmetic number, because the mean of its divisors is an integer number (18479451850752).

Almost surely, 2^{221541216230067} is an apocalyptic number.

221541216230067 is a deficient number, since it is larger than the sum of its proper divisors (74130013381965).

221541216230067 is a wasteful number, since it uses less digits than its factorization.

221541216230067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573458.

The product of its (nonzero) digits is 241920, while the sum is 42.

Adding to 221541216230067 its reverse (760032612145122), we get a palindrome (981573828375189).

The spelling of 221541216230067 in words is "two hundred twenty-one trillion, five hundred forty-one billion, two hundred sixteen million, two hundred thirty thousand, sixty-seven".