20002021101101 has 8 divisors (see below), whose sum is σ = 21542861450040. Its totient is φ = 18461498372352.

The previous prime is 20002021101031. The next prime is 20002021101233. The reversal of 20002021101101 is 10110112020002.

It can be written as a sum of positive squares in 4 ways, for example, as 5120711884201 + 14881309216900 = 2262899^2 + 3857630^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20002021101101 - 2¹⁰ = 20002021100077 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 (20002021101701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79274240 + ... + 79526153.

It is an arithmetic number, because the mean of its divisors is an integer number (2692857681255).

Almost surely, 2^{20002021101101} is an apocalyptic number.

It is an amenable number.

20002021101101 is a deficient number, since it is larger than the sum of its proper divisors (1540840348939).

20002021101101 is a wasteful number, since it uses less digits than its factorization.

20002021101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158810095.

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

Adding to 20002021101101 its reverse (10110112020002), we get a palindrome (30112133121103).

The spelling of 20002021101101 in words is "twenty trillion, two billion, twenty-one million, one hundred one thousand, one hundred one".