12221120012249 has 4 divisors (see below), whose sum is σ = 12421466242020. Its totient is φ = 12020773782480.

The previous prime is 12221120012183. The next prime is 12221120012251. The reversal of 12221120012249 is 94221002112221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 962276635849 + 11258843376400 = 980957^2 + 3355420^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221120012249 - 2⁸ = 12221120011993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221120012149) 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, 100173114794 + ... + 100173114915.

It is an arithmetic number, because the mean of its divisors is an integer number (3105366560505).

Almost surely, 2^{12221120012249} is an apocalyptic number.

It is an amenable number.

12221120012249 is a deficient number, since it is larger than the sum of its proper divisors (200346229771).

12221120012249 is an equidigital number, since it uses as much as digits as its factorization.

12221120012249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200346229770.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 12221120012249 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty million, twelve thousand, two hundred forty-nine".