20002021011101 has 4 divisors (see below), whose sum is σ = 20002239974112. Its totient is φ = 20001802048092.

The previous prime is 20002021011067. The next prime is 20002021011139. The reversal of 20002021011101 is 10111012020002.

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 20002021011101 - 2³⁸ = 19727143104157 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 (20002021011191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109344425 + ... + 109527198.

It is an arithmetic number, because the mean of its divisors is an integer number (5000559993528).

Almost surely, 2^{20002021011101} is an apocalyptic number.

It is an amenable number.

20002021011101 is a deficient number, since it is larger than the sum of its proper divisors (218963011).

20002021011101 is an equidigital number, since it uses as much as digits as its factorization.

20002021011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218963010.

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

Adding to 20002021011101 its reverse (10111012020002), we get a palindrome (30113033031103).

The spelling of 20002021011101 in words is "twenty trillion, two billion, twenty-one million, eleven thousand, one hundred one".