12220121009999 has 8 divisors (see below), whose sum is σ = 14787373323168. Its totient is φ = 9858248881920.

The previous prime is 12220121009947. The next prime is 12220121010001. The reversal of 12220121009999 is 99990012102221.

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 12220121009999 - 2¹² = 12220121005903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220121059999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51345046142 + ... + 51345046379.

It is an arithmetic number, because the mean of its divisors is an integer number (1848421665396).

Almost surely, 2^{12220121009999} is an apocalyptic number.

12220121009999 is a deficient number, since it is larger than the sum of its proper divisors (2567252313169).

12220121009999 is a wasteful number, since it uses less digits than its factorization.

12220121009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102690092545.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 12220121009999 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, nine thousand, nine hundred ninety-nine".