331303222221 has 8 divisors (see below), whose sum is σ = 447059770080. Its totient is φ = 218207744592.

The previous prime is 331303222207. The next prime is 331303222249. The reversal of 331303222221 is 122222303133.

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

It is not a de Polignac number, because 331303222221 - 2¹⁷ = 331303091149 is a prime.

It is a super-3 number, since 3×331303222221³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331303222191 and 331303222200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331303202221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665267266 + ... + 665267763.

It is an arithmetic number, because the mean of its divisors is an integer number (55882471260).

Almost surely, 2^331303222221 is an apocalyptic number.

It is an amenable number.

331303222221 is a deficient number, since it is larger than the sum of its proper divisors (115756547859).

331303222221 is a wasteful number, since it uses less digits than its factorization.

331303222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330535115.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 331303222221 its reverse (122222303133), we get a palindrome (453525525354).

The spelling of 331303222221 in words is "three hundred thirty-one billion, three hundred three million, two hundred twenty-two thousand, two hundred twenty-one".