20210010001101 has 24 divisors (see below), whose sum is σ = 29756475282456. Its totient is φ = 13213151952000.

The previous prime is 20210010001091. The next prime is 20210010001109. The reversal of 20210010001101 is 10110001001202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6215871717225 + 13994138283876 = 2493165^2 + 3740874^2 .

It is not a de Polignac number, because 20210010001101 - 2²⁵ = 20209976446669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210010001109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8517150 + ... + 10628351.

It is an arithmetic number, because the mean of its divisors is an integer number (1239853136769).

Almost surely, 2^{20210010001101} is an apocalyptic number.

It is an amenable number.

20210010001101 is a deficient number, since it is larger than the sum of its proper divisors (9546465281355).

20210010001101 is a wasteful number, since it uses less digits than its factorization.

20210010001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19147773 (or 19147770 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20210010001101 its reverse (10110001001202), we get a palindrome (30320011002303).

The spelling of 20210010001101 in words is "twenty trillion, two hundred ten billion, ten million, one thousand, one hundred one".