12100120012221 has 8 divisors (see below), whose sum is σ = 16164341331360. Its totient is φ = 8051322683952.

The previous prime is 12100120012193. The next prime is 12100120012241. The reversal of 12100120012221 is 12221002100121.

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

It is not a de Polignac number, because 12100120012221 - 2¹⁹ = 12100119487933 is a prime.

It is a super-2 number, since 2×12100120012221² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12100120012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100120012241) 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, 3855995886 + ... + 3855999023.

It is an arithmetic number, because the mean of its divisors is an integer number (2020542666420).

Almost surely, 2^{12100120012221} is an apocalyptic number.

It is an amenable number.

12100120012221 is a deficient number, since it is larger than the sum of its proper divisors (4064221319139).

12100120012221 is an equidigital number, since it uses as much as digits as its factorization.

12100120012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711995435.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12100120012221 its reverse (12221002100121), we get a palindrome (24321122112342).

The spelling of 12100120012221 in words is "twelve trillion, one hundred billion, one hundred twenty million, twelve thousand, two hundred twenty-one".