12001020122021 has 8 divisors (see below), whose sum is σ = 13784373436800. Its totient is φ = 10234897274448.

The previous prime is 12001020122017. The next prime is 12001020122053. The reversal of 12001020122021 is 12022102010021.

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

It is not a de Polignac number, because 12001020122021 - 2² = 12001020122017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001020121987 and 12001020122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001020122011) 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, 4307615306 + ... + 4307618091.

It is an arithmetic number, because the mean of its divisors is an integer number (1723046679600).

Almost surely, 2^{12001020122021} is an apocalyptic number.

It is an amenable number.

12001020122021 is a deficient number, since it is larger than the sum of its proper divisors (1783353314779).

12001020122021 is an equidigital number, since it uses as much as digits as its factorization.

12001020122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8615233603.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12001020122021 its reverse (12022102010021), we get a palindrome (24023122132042).

The spelling of 12001020122021 in words is "twelve trillion, one billion, twenty million, one hundred twenty-two thousand, twenty-one".