221333331330 has 32 divisors (see below), whose sum is σ = 590222217600. Its totient is φ = 59022221616.

The previous prime is 221333331293. The next prime is 221333331371. The reversal of 221333331330 is 33133333122.

221333331330 is a `hidden beast` number, since 2 + 2 + 13 + 333 + 313 + 3 + 0 = 666.

221333331330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221333331294 and 221333331303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409876270 + ... + 409876809.

It is an arithmetic number, because the mean of its divisors is an integer number (18444444300).

Almost surely, 2^221333331330 is an apocalyptic number.

221333331330 is an abundant number, since it is smaller than the sum of its proper divisors (368888886270).

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

221333331330 is a wasteful number, since it uses less digits than its factorization.

221333331330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819753095 (or 819753089 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 27.

Adding to 221333331330 its reverse (33133333122), we get a palindrome (254466664452).

The spelling of 221333331330 in words is "two hundred twenty-one billion, three hundred thirty-three million, three hundred thirty-one thousand, three hundred thirty".