221330241330 has 64 divisors (see below), whose sum is σ = 609981926400. Its totient is φ = 50831824320.

The previous prime is 221330241277. The next prime is 221330241343. The reversal of 221330241330 is 33142033122.

It is a self number, because there is not a number n which added to its sum of digits gives 221330241330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17643670 + ... + 17656209.

It is an arithmetic number, because the mean of its divisors is an integer number (9530967600).

Almost surely, 2^221330241330 is an apocalyptic number.

221330241330 is an abundant number, since it is smaller than the sum of its proper divisors (388651685070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221330241330 is a wasteful number, since it uses less digits than its factorization.

221330241330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35299919.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221330241330 its reverse (33142033122), we get a palindrome (254472274452).

The spelling of 221330241330 in words is "two hundred twenty-one billion, three hundred thirty million, two hundred forty-one thousand, three hundred thirty".