2021100011201 has 4 divisors (see below), whose sum is σ = 2139988247172. Its totient is φ = 1902211775232.

The previous prime is 2021100011173. The next prime is 2021100011207. The reversal of 2021100011201 is 1021100011202.

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 945855447601 + 1075244563600 = 972551^2 + 1036940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021100011201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021100011207) 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, 59444117960 + ... + 59444117993.

It is an arithmetic number, because the mean of its divisors is an integer number (534997061793).

Almost surely, 2^{2021100011201} is an apocalyptic number.

It is an amenable number.

2021100011201 is a deficient number, since it is larger than the sum of its proper divisors (118888235971).

2021100011201 is a wasteful number, since it uses less digits than its factorization.

2021100011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118888235970.

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

Adding to 2021100011201 its reverse (1021100011202), we get a palindrome (3042200022403).

Subtracting from 2021100011201 its reverse (1021100011202), we obtain a palindrome (999999999999).

It can be divided in two parts, 202110001 and 1201, that added together give a palindrome (202111202).

The spelling of 2021100011201 in words is "two trillion, twenty-one billion, one hundred million, eleven thousand, two hundred one".