221430541443315 has 16 divisors (see below), whose sum is σ = 354300368813568. Its totient is φ = 118092454601696.

The previous prime is 221430541443281. The next prime is 221430541443323. The reversal of 221430541443315 is 513344145034122.

221430541443315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221430541443315 - 2¹¹ = 221430541441267 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239158059 + ... + 240082148.

It is an arithmetic number, because the mean of its divisors is an integer number (22143773050848).

Almost surely, 2^{221430541443315} is an apocalyptic number.

221430541443315 is a deficient number, since it is larger than the sum of its proper divisors (132869827370253).

221430541443315 is a wasteful number, since it uses less digits than its factorization.

221430541443315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479271018.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 221430541443315 its reverse (513344145034122), we get a palindrome (734774686477437).

The spelling of 221430541443315 in words is "two hundred twenty-one trillion, four hundred thirty billion, five hundred forty-one million, four hundred forty-three thousand, three hundred fifteen".