12330611221 has 2 divisors, whose sum is σ = 12330611222. Its totient is φ = 12330611220.

The previous prime is 12330611219. The next prime is 12330611233. The reversal of 12330611221 is 12211603321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8210896996 + 4119714225 = 90614^2 + 64185^2 .

It is a cyclic number.

It is not a de Polignac number, because 12330611221 - 2¹ = 12330611219 is a prime.

It is a super-2 number, since 2×12330611221² (a number of 21 digits) contains 22 as substring.

Together with 12330611219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12330611192 and 12330611201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12330611201) 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 as a sum of consecutive naturals, namely, 6165305610 + 6165305611.

It is an arithmetic number, because the mean of its divisors is an integer number (6165305611).

Almost surely, 2^12330611221 is an apocalyptic number.

It is an amenable number.

12330611221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12330611221 is an equidigital number, since it uses as much as digits as its factorization.

12330611221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 12330611221 in words is "twelve billion, three hundred thirty million, six hundred eleven thousand, two hundred twenty-one".