221111210330 has 16 divisors (see below), whose sum is σ = 398012360904. Its totient is φ = 88441776960.

The previous prime is 221111210323. The next prime is 221111210351. The reversal of 221111210330 is 33012111122.

221111210330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 216715387729 + 4395822601 = 465527^2 + 66301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221111210299 and 221111210308.

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 7 ways as a sum of consecutive naturals, for example, 23024 + ... + 665396.

Almost surely, 2^221111210330 is an apocalyptic number.

221111210330 is a deficient number, since it is larger than the sum of its proper divisors (176901150574).

221111210330 is a wasteful number, since it uses less digits than its factorization.

221111210330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676801.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 221111210330 its reverse (33012111122), we get a palindrome (254123321452).

The spelling of 221111210330 in words is "two hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, three hundred thirty".