331010232221 has 32 divisors (see below), whose sum is σ = 355940766720. Its totient is φ = 307110824064.

The previous prime is 331010232143. The next prime is 331010232229. The reversal of 331010232221 is 122232010133.

It is a cyclic number.

It is not a de Polignac number, because 331010232221 - 2¹⁰ = 331010231197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331010232193 and 331010232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331010232229) 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 31 ways as a sum of consecutive naturals, for example, 126483305 + ... + 126485921.

It is an arithmetic number, because the mean of its divisors is an integer number (11123148960).

Almost surely, 2^331010232221 is an apocalyptic number.

It is an amenable number.

331010232221 is a deficient number, since it is larger than the sum of its proper divisors (24930534499).

331010232221 is a wasteful number, since it uses less digits than its factorization.

331010232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 331010232221 its reverse (122232010133), we get a palindrome (453242242354).

The spelling of 331010232221 in words is "three hundred thirty-one billion, ten million, two hundred thirty-two thousand, two hundred twenty-one".