12219963891469 has 2 divisors, whose sum is σ = 12219963891470. Its totient is φ = 12219963891468.

The previous prime is 12219963891439. The next prime is 12219963891589. The reversal of 12219963891469 is 96419836991221.

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., 6582482953225 + 5637480938244 = 2565635^2 + 2374338^2 .

It is a cyclic number.

It is not a de Polignac number, because 12219963891469 - 2⁹ = 12219963890957 is a prime.

It is a super-2 number, since 2×12219963891469² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12219963891398 and 12219963891407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12219963891419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6109981945734 + 6109981945735.

It is an arithmetic number, because the mean of its divisors is an integer number (6109981945735).

Almost surely, 2^{12219963891469} is an apocalyptic number.

It is an amenable number.

12219963891469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12219963891469 is an equidigital number, since it uses as much as digits as its factorization.

12219963891469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90699264, while the sum is 70.

The spelling of 12219963891469 in words is "twelve trillion, two hundred nineteen billion, nine hundred sixty-three million, eight hundred ninety-one thousand, four hundred sixty-nine".