20200020012101 has 4 divisors (see below), whose sum is σ = 20200281744204. Its totient is φ = 20199758280000.

The previous prime is 20200020012047. The next prime is 20200020012113. The reversal of 20200020012101 is 10121002000202.

It is a happy number.

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 7261682952001 + 12938337060100 = 2694751^2 + 3596990^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200020012101 - 2¹⁰ = 20200020011077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200020012131) 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, 130750250 + ... + 130904651.

It is an arithmetic number, because the mean of its divisors is an integer number (5050070436051).

Almost surely, 2^{20200020012101} is an apocalyptic number.

It is an amenable number.

20200020012101 is a deficient number, since it is larger than the sum of its proper divisors (261732103).

20200020012101 is an equidigital number, since it uses as much as digits as its factorization.

20200020012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261732102.

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

Adding to 20200020012101 its reverse (10121002000202), we get a palindrome (30321022012303).

The spelling of 20200020012101 in words is "twenty trillion, two hundred billion, twenty million, twelve thousand, one hundred one".