12221142411443 has 4 divisors (see below), whose sum is σ = 13967019898800. Its totient is φ = 10475264924088.

The previous prime is 12221142411437. The next prime is 12221142411487. The reversal of 12221142411443 is 34411424112221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221142411443 - 2³⁰ = 12220068669619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221142410443) 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 3 ways as a sum of consecutive naturals, for example, 872938743668 + ... + 872938743681.

It is an arithmetic number, because the mean of its divisors is an integer number (3491754974700).

Almost surely, 2^{12221142411443} is an apocalyptic number.

12221142411443 is a deficient number, since it is larger than the sum of its proper divisors (1745877487357).

12221142411443 is an equidigital number, since it uses as much as digits as its factorization.

12221142411443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745877487356.

The product of its digits is 12288, while the sum is 32.

Adding to 12221142411443 its reverse (34411424112221), we get a palindrome (46632566523664).

The spelling of 12221142411443 in words is "twelve trillion, two hundred twenty-one billion, one hundred forty-two million, four hundred eleven thousand, four hundred forty-three".