221355443230 has 16 divisors (see below), whose sum is σ = 400328141904. Its totient is φ = 88122545280.

The previous prime is 221355443201. The next prime is 221355443279. The reversal of 221355443230 is 32344553122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52451787 + ... + 52456006.

It is an arithmetic number, because the mean of its divisors is an integer number (25020508869).

Almost surely, 2^221355443230 is an apocalyptic number.

221355443230 is a deficient number, since it is larger than the sum of its proper divisors (178972698674).

221355443230 is a wasteful number, since it uses less digits than its factorization.

221355443230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104908011.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 221355443230 its reverse (32344553122), we get a palindrome (253699996352).

The spelling of 221355443230 in words is "two hundred twenty-one billion, three hundred fifty-five million, four hundred forty-three thousand, two hundred thirty".