20110020202001 has 4 divisors (see below), whose sum is σ = 20110076958192. Its totient is φ = 20109963445812.

The previous prime is 20110020201979. The next prime is 20110020202031. The reversal of 20110020202001 is 10020202001102.

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 20110020202001 - 2¹⁴ = 20110020185617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110020202031) 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, 27843251 + ... + 28556376.

It is an arithmetic number, because the mean of its divisors is an integer number (5027519239548).

Almost surely, 2^{20110020202001} is an apocalyptic number.

It is an amenable number.

20110020202001 is a deficient number, since it is larger than the sum of its proper divisors (56756191).

20110020202001 is an equidigital number, since it uses as much as digits as its factorization.

20110020202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56756190.

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

Adding to 20110020202001 its reverse (10020202001102), we get a palindrome (30130222203103).

The spelling of 20110020202001 in words is "twenty trillion, one hundred ten billion, twenty million, two hundred two thousand, one".