12020022121001 has 4 divisors (see below), whose sum is σ = 12126393998292. Its totient is φ = 11913650243712.

The previous prime is 12020022120941. The next prime is 12020022121049. The reversal of 12020022121001 is 10012122002021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1405230059776 + 10614792061225 = 1185424^2 + 3258035^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020022121001 - 2¹⁸ = 12020021858857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020022121061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53185938476 + ... + 53185938701.

It is an arithmetic number, because the mean of its divisors is an integer number (3031598499573).

Almost surely, 2^{12020022121001} is an apocalyptic number.

It is an amenable number.

12020022121001 is a deficient number, since it is larger than the sum of its proper divisors (106371877291).

12020022121001 is a wasteful number, since it uses less digits than its factorization.

12020022121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106371877290.

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

Adding to 12020022121001 its reverse (10012122002021), we get a palindrome (22032144123022).

The spelling of 12020022121001 in words is "twelve trillion, twenty billion, twenty-two million, one hundred twenty-one thousand, one".