12221921244007 has 8 divisors (see below), whose sum is σ = 12232101772800. Its totient is φ = 12211741468344.

The previous prime is 12221921243993. The next prime is 12221921244041. The reversal of 12221921244007 is 70044212912221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221921244007 - 2⁷ = 12221921243879 is a prime.

It is a super-2 number, since 2×12221921244007² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221921241007) 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 7 ways as a sum of consecutive naturals, for example, 35011594 + ... + 35358952.

It is an arithmetic number, because the mean of its divisors is an integer number (1529012721600).

Almost surely, 2^{12221921244007} is an apocalyptic number.

12221921244007 is a deficient number, since it is larger than the sum of its proper divisors (10180528793).

12221921244007 is a wasteful number, since it uses less digits than its factorization.

12221921244007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376565.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 12221921244007 in words is "twelve trillion, two hundred twenty-one billion, nine hundred twenty-one million, two hundred forty-four thousand, seven".