12221023331439 has 16 divisors (see below), whose sum is σ = 19497928962400. Its totient is φ = 7520629742208.

The previous prime is 12221023331401. The next prime is 12221023331459. The reversal of 12221023331439 is 93413332012221.

12221023331439 is a `hidden beast` number, since 1 + 2 + 2 + 210 + 2 + 3 + 3 + 3 + 1 + 439 = 666.

It is not a de Polignac number, because 12221023331439 - 2⁷ = 12221023331311 is a prime.

It is a super-2 number, since 2×12221023331439² (a number of 27 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 (12221023331459) 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 15 ways as a sum of consecutive naturals, for example, 17408864794 + ... + 17408865495.

It is an arithmetic number, because the mean of its divisors is an integer number (1218620560150).

Almost surely, 2^{12221023331439} is an apocalyptic number.

12221023331439 is a deficient number, since it is larger than the sum of its proper divisors (7276905630961).

12221023331439 is a wasteful number, since it uses less digits than its factorization.

12221023331439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34817730311 (or 34817730305 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 12221023331439 in words is "twelve trillion, two hundred twenty-one billion, twenty-three million, three hundred thirty-one thousand, four hundred thirty-nine".