331430414012221 has 4 divisors (see below), whose sum is σ = 331430739763744. Its totient is φ = 331430088260700.

The previous prime is 331430414012119. The next prime is 331430414012273. The reversal of 331430414012221 is 122210414034133.

It is a happy number.

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 331430414012221 - 2¹⁹ = 331430413487933 is a prime.

It is a super-2 number, since 2×331430414012221² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331430414012281) 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, 161344815 + ... + 163386076.

It is an arithmetic number, because the mean of its divisors is an integer number (82857684940936).

Almost surely, 2^{331430414012221} is an apocalyptic number.

It is an amenable number.

331430414012221 is a deficient number, since it is larger than the sum of its proper divisors (325751523).

331430414012221 is a wasteful number, since it uses less digits than its factorization.

331430414012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325751522.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 331430414012221 its reverse (122210414034133), we get a palindrome (453640828046354).

The spelling of 331430414012221 in words is "three hundred thirty-one trillion, four hundred thirty billion, four hundred fourteen million, twelve thousand, two hundred twenty-one".