12010212021221 has 8 divisors (see below), whose sum is σ = 12052989072000. Its totient is φ = 11967506208000.

The previous prime is 12010212021217. The next prime is 12010212021229. The reversal of 12010212021221 is 12212021201021.

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 12010212021221 - 2² = 12010212021217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12010212021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010212021229) 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, 17471591 + ... + 18145988.

It is an arithmetic number, because the mean of its divisors is an integer number (1506623634000).

Almost surely, 2^{12010212021221} is an apocalyptic number.

It is an amenable number.

12010212021221 is a deficient number, since it is larger than the sum of its proper divisors (42777050779).

12010212021221 is an equidigital number, since it uses as much as digits as its factorization.

12010212021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35618779.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12010212021221 its reverse (12212021201021), we get a palindrome (24222233222242).

The spelling of 12010212021221 in words is "twelve trillion, ten billion, two hundred twelve million, twenty-one thousand, two hundred twenty-one".