330421131432221 has 4 divisors (see below), whose sum is σ = 344787267581472. Its totient is φ = 316054995282972.

The previous prime is 330421131432199. The next prime is 330421131432229. The reversal of 330421131432221 is 122234131124033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 330421131432221 - 2²² = 330421127237917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330421131432229) 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 3 ways as a sum of consecutive naturals, for example, 7183068074591 + ... + 7183068074636.

It is an arithmetic number, because the mean of its divisors is an integer number (86196816895368).

Almost surely, 2^{330421131432221} is an apocalyptic number.

It is an amenable number.

330421131432221 is a deficient number, since it is larger than the sum of its proper divisors (14366136149251).

330421131432221 is a wasteful number, since it uses less digits than its factorization.

330421131432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14366136149250.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 330421131432221 its reverse (122234131124033), we get a palindrome (452655262556254).

The spelling of 330421131432221 in words is "three hundred thirty trillion, four hundred twenty-one billion, one hundred thirty-one million, four hundred thirty-two thousand, two hundred twenty-one".