12221544733889 has 4 divisors (see below), whose sum is σ = 12221562336000. Its totient is φ = 12221527131780.

The previous prime is 12221544733873. The next prime is 12221544733897. The reversal of 12221544733889 is 98833744512221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12221544733889 - 2⁴ = 12221544733873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221544733829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7714889 + ... + 9163110.

It is an arithmetic number, because the mean of its divisors is an integer number (3055390584000).

Almost surely, 2^{12221544733889} is an apocalyptic number.

It is an amenable number.

12221544733889 is a deficient number, since it is larger than the sum of its proper divisors (17602111).

12221544733889 is an equidigital number, since it uses as much as digits as its factorization.

12221544733889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17602110.

The product of its digits is 23224320, while the sum is 59.

The spelling of 12221544733889 in words is "twelve trillion, two hundred twenty-one billion, five hundred forty-four million, seven hundred thirty-three thousand, eight hundred eighty-nine".