331003010322221 has 4 divisors (see below), whose sum is σ = 333609333238272. Its totient is φ = 328396687406172.

The previous prime is 331003010322203. The next prime is 331003010322233. The reversal of 331003010322221 is 122223010300133.

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 331003010322221 - 2⁶ = 331003010322157 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 (331003010322121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303161457835 + ... + 1303161458088.

It is an arithmetic number, because the mean of its divisors is an integer number (83402333309568).

Almost surely, 2^{331003010322221} is an apocalyptic number.

It is an amenable number.

331003010322221 is a deficient number, since it is larger than the sum of its proper divisors (2606322916051).

331003010322221 is a wasteful number, since it uses less digits than its factorization.

331003010322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606322916050.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 331003010322221 its reverse (122223010300133), we get a palindrome (453226020622354).

The spelling of 331003010322221 in words is "three hundred thirty-one trillion, three billion, ten million, three hundred twenty-two thousand, two hundred twenty-one".