221333122 has 8 divisors (see below), whose sum is σ = 332117136. Its totient is φ = 110627412.

The previous prime is 221333089. The next prime is 221333143.

221333122 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221333122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11908 + ... + 24175.

It is an arithmetic number, because the mean of its divisors is an integer number (41514642).

Almost surely, 2^221333122 is an apocalyptic number.

221333122 is a deficient number, since it is larger than the sum of its proper divisors (110784014).

221333122 is a wasteful number, since it uses less digits than its factorization.

221333122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39152.

The product of its digits is 432, while the sum is 19.

The square root of 221333122 is about 14877.2686337244. The cubic root of 221333122 is about 604.8979833906.

The spelling of 221333122 in words is "two hundred twenty-one million, three hundred thirty-three thousand, one hundred twenty-two".