12012211320121 has 8 divisors (see below), whose sum is σ = 12018457859840. Its totient is φ = 12005966411712.

The previous prime is 12012211320097. The next prime is 12012211320127. The reversal of 12012211320121 is 12102311221021.

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 12012211320121 - 2³⁷ = 11874772366649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012211320127) 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, 14463676 + ... + 15271618.

It is an arithmetic number, because the mean of its divisors is an integer number (1502307232480).

Almost surely, 2^{12012211320121} is an apocalyptic number.

It is an amenable number.

12012211320121 is a deficient number, since it is larger than the sum of its proper divisors (6246539719).

12012211320121 is an equidigital number, since it uses as much as digits as its factorization.

12012211320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815655.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12012211320121 its reverse (12102311221021), we get a palindrome (24114522541142).

The spelling of 12012211320121 in words is "twelve trillion, twelve billion, two hundred eleven million, three hundred twenty thousand, one hundred twenty-one".