331103221 has 8 divisors (see below), whose sum is σ = 339701760. Its totient is φ = 322604352.

The previous prime is 331103209. The next prime is 331103231. The reversal of 331103221 is 122301133.

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

It is a cyclic number.

It is not a de Polignac number, because 331103221 - 2⁵ = 331103189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331103195 and 331103204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331103231) by changing a digit.

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, 18165 + ... + 31498.

It is an arithmetic number, because the mean of its divisors is an integer number (42462720).

Almost surely, 2^331103221 is an apocalyptic number.

It is an amenable number.

331103221 is a deficient number, since it is larger than the sum of its proper divisors (8598539).

331103221 is a wasteful number, since it uses less digits than its factorization.

331103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49835.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 331103221 is about 18196.2419471714. The cubic root of 331103221 is about 691.8115395831.

Adding to 331103221 its reverse (122301133), we get a palindrome (453404354).

The spelling of 331103221 in words is "three hundred thirty-one million, one hundred three thousand, two hundred twenty-one".