221330133330 has 16 divisors (see below), whose sum is σ = 531192320064. Its totient is φ = 59021368880.

The previous prime is 221330133313. The next prime is 221330133383. The reversal of 221330133330 is 33331033122.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221330133330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3688835526 + ... + 3688835585.

It is an arithmetic number, because the mean of its divisors is an integer number (33199520004).

Almost surely, 2^221330133330 is an apocalyptic number.

221330133330 is an abundant number, since it is smaller than the sum of its proper divisors (309862186734).

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

221330133330 is a wasteful number, since it uses less digits than its factorization.

221330133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377671121.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 221330133330 its reverse (33331033122), we get a palindrome (254661166452).

The spelling of 221330133330 in words is "two hundred twenty-one billion, three hundred thirty million, one hundred thirty-three thousand, three hundred thirty".