12110012010221 has 4 divisors (see below), whose sum is σ = 12117294039552. Its totient is φ = 12102729980892.

The previous prime is 12110012010193. The next prime is 12110012010277. The reversal of 12110012010221 is 12201021001121.

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 12110012010221 - 2²⁶ = 12109944901357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110012010196 and 12110012010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110012012221) 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, 3641012171 + ... + 3641015496.

It is an arithmetic number, because the mean of its divisors is an integer number (3029323509888).

Almost surely, 2^{12110012010221} is an apocalyptic number.

It is an amenable number.

12110012010221 is a deficient number, since it is larger than the sum of its proper divisors (7282029331).

12110012010221 is an equidigital number, since it uses as much as digits as its factorization.

12110012010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7282029330.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110012010221 its reverse (12201021001121), we get a palindrome (24311033011342).

The spelling of 12110012010221 in words is "twelve trillion, one hundred ten billion, twelve million, ten thousand, two hundred twenty-one".