331200221 has 8 divisors (see below), whose sum is σ = 362009088. Its totient is φ = 300508000.

The previous prime is 331200193. The next prime is 331200227. The reversal of 331200221 is 122002133.

It is a happy number.

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 331200221 - 2¹⁴ = 331183837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 331200196 and 331200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331200227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23165 + ... + 34626.

It is an arithmetic number, because the mean of its divisors is an integer number (45251136).

Almost surely, 2^331200221 is an apocalyptic number.

It is an amenable number.

331200221 is a deficient number, since it is larger than the sum of its proper divisors (30808867).

331200221 is a wasteful number, since it uses less digits than its factorization.

331200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58323.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 331200221 is about 18198.9071375179. The cubic root of 331200221 is about 691.8790906900.

Adding to 331200221 its reverse (122002133), we get a palindrome (453202354).

The spelling of 331200221 in words is "three hundred thirty-one million, two hundred thousand, two hundred twenty-one".