12020001121001 has 4 divisors (see below), whose sum is σ = 12054640894032. Its totient is φ = 11985361347972.

The previous prime is 12020001120979. The next prime is 12020001121129. The reversal of 12020001121001 is 10012110002021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12020001121001 - 2⁶ = 12020001120937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020001129001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17319885995 + ... + 17319886688.

It is an arithmetic number, because the mean of its divisors is an integer number (3013660223508).

Almost surely, 2^{12020001121001} is an apocalyptic number.

It is an amenable number.

12020001121001 is a deficient number, since it is larger than the sum of its proper divisors (34639773031).

12020001121001 is an equidigital number, since it uses as much as digits as its factorization.

12020001121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34639773030.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12020001121001 its reverse (10012110002021), we get a palindrome (22032111123022).

The spelling of 12020001121001 in words is "twelve trillion, twenty billion, one million, one hundred twenty-one thousand, one".