21112020001101 has 64 divisors (see below), whose sum is σ = 28875162113280. Its totient is φ = 13717881446400.

The previous prime is 21112020001073. The next prime is 21112020001159. The reversal of 21112020001101 is 10110002021112.

It is not a de Polignac number, because 21112020001101 - 2³⁸ = 20837142094157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112020001181) 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 63 ways as a sum of consecutive naturals, for example, 5795227386 + ... + 5795231028.

It is an arithmetic number, because the mean of its divisors is an integer number (451174408020).

Almost surely, 2^{21112020001101} is an apocalyptic number.

It is an amenable number.

21112020001101 is a deficient number, since it is larger than the sum of its proper divisors (7763142112179).

21112020001101 is a wasteful number, since it uses less digits than its factorization.

21112020001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21112020001101 its reverse (10110002021112), we get a palindrome (31222022022213).

The spelling of 21112020001101 in words is "twenty-one trillion, one hundred twelve billion, twenty million, one thousand, one hundred one".