12010021022121 has 8 divisors (see below), whose sum is σ = 16051579410720. Its totient is φ = 7987571657472.

The previous prime is 12010021022089. The next prime is 12010021022141. The reversal of 12010021022121 is 12122012001021.

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

It is not a de Polignac number, because 12010021022121 - 2⁵ = 12010021022089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010021022121.

It is not an unprimeable number, because it can be changed into a prime (12010021022141) 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, 4777254520 + ... + 4777257033.

It is an arithmetic number, because the mean of its divisors is an integer number (2006447426340).

Almost surely, 2^{12010021022121} is an apocalyptic number.

It is an amenable number.

12010021022121 is a deficient number, since it is larger than the sum of its proper divisors (4041558388599).

12010021022121 is an equidigital number, since it uses as much as digits as its factorization.

12010021022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9554511975.

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

Adding to 12010021022121 its reverse (12122012001021), we get a palindrome (24132033023142).

The spelling of 12010021022121 in words is "twelve trillion, ten billion, twenty-one million, twenty-two thousand, one hundred twenty-one".