12221119757887 has 2 divisors, whose sum is σ = 12221119757888. Its totient is φ = 12221119757886.

The previous prime is 12221119757837. The next prime is 12221119757893. The reversal of 12221119757887 is 78875791112221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221119757887 - 2¹⁵ = 12221119725119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221119757837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110559878943 + 6110559878944.

It is an arithmetic number, because the mean of its divisors is an integer number (6110559878944).

Almost surely, 2^{12221119757887} is an apocalyptic number.

12221119757887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221119757887 is an equidigital number, since it uses as much as digits as its factorization.

12221119757887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7902720, while the sum is 61.

The spelling of 12221119757887 in words is "twelve trillion, two hundred twenty-one billion, one hundred nineteen million, seven hundred fifty-seven thousand, eight hundred eighty-seven".