1213453221467 has 2 divisors, whose sum is σ = 1213453221468. Its totient is φ = 1213453221466.

The previous prime is 1213453221443. The next prime is 1213453221469. The reversal of 1213453221467 is 7641223543121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213453221467 - 2¹⁰ = 1213453220443 is a prime.

Together with 1213453221469, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1213453221469) 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, 606726610733 + 606726610734.

It is an arithmetic number, because the mean of its divisors is an integer number (606726610734).

Almost surely, 2^{1213453221467} is an apocalyptic number.

1213453221467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213453221467 is an equidigital number, since it uses as much as digits as its factorization.

1213453221467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

Adding to 1213453221467 its reverse (7641223543121), we get a palindrome (8854676764588).

The spelling of 1213453221467 in words is "one trillion, two hundred thirteen billion, four hundred fifty-three million, two hundred twenty-one thousand, four hundred sixty-seven".