12020021200001 has 4 divisors (see below), whose sum is σ = 12020060948400. Its totient is φ = 12019981451604.

The previous prime is 12020021199983. The next prime is 12020021200027. The reversal of 12020021200001 is 10000212002021.

It is a happy number.

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 12020021200001 - 2⁴² = 7621974688897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020021200091) 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, 19417091 + ... + 20026568.

It is an arithmetic number, because the mean of its divisors is an integer number (3005015237100).

Almost surely, 2^{12020021200001} is an apocalyptic number.

It is an amenable number.

12020021200001 is a deficient number, since it is larger than the sum of its proper divisors (39748399).

12020021200001 is an equidigital number, since it uses as much as digits as its factorization.

12020021200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39748398.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12020021200001 its reverse (10000212002021), we get a palindrome (22020233202022).

The spelling of 12020021200001 in words is "twelve trillion, twenty billion, twenty-one million, two hundred thousand, one".