12221440033391 has 2 divisors, whose sum is σ = 12221440033392. Its totient is φ = 12221440033390.

The previous prime is 12221440033351. The next prime is 12221440033417. The reversal of 12221440033391 is 19333004412221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221440033391 - 2³⁴ = 12204260164207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221440033321) 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 as a sum of consecutive naturals, namely, 6110720016695 + 6110720016696.

It is an arithmetic number, because the mean of its divisors is an integer number (6110720016696).

Almost surely, 2^{12221440033391} is an apocalyptic number.

12221440033391 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221440033391 is an equidigital number, since it uses as much as digits as its factorization.

12221440033391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 12221440033391 in words is "twelve trillion, two hundred twenty-one billion, four hundred forty million, thirty-three thousand, three hundred ninety-one".