221111330 has 16 divisors (see below), whose sum is σ = 434182464. Its totient is φ = 80404080.

The previous prime is 221111329. The next prime is 221111347. The reversal of 221111330 is 33111122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004942 + ... + 1005161.

It is an arithmetic number, because the mean of its divisors is an integer number (27136404).

Almost surely, 2^221111330 is an apocalyptic number.

221111330 is a deficient number, since it is larger than the sum of its proper divisors (213071134).

221111330 is a wasteful number, since it uses less digits than its factorization.

221111330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010121.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 221111330 is about 14869.8127089752. The cubic root of 221111330 is about 604.6958651679.

Adding to 221111330 its reverse (33111122), we get a palindrome (254222452).

The spelling of 221111330 in words is "two hundred twenty-one million, one hundred eleven thousand, three hundred thirty".