2021200120011 has 4 divisors (see below), whose sum is σ = 2694933493352. Its totient is φ = 1347466746672.

The previous prime is 2021200119997. The next prime is 2021200120033. The reversal of 2021200120011 is 1100210021202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2021200120011 - 2³⁰ = 2020126378187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021200120211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336866686666 + ... + 336866686671.

It is an arithmetic number, because the mean of its divisors is an integer number (673733373338).

Almost surely, 2^{2021200120011} is an apocalyptic number.

2021200120011 is a deficient number, since it is larger than the sum of its proper divisors (673733373341).

2021200120011 is an equidigital number, since it uses as much as digits as its factorization.

2021200120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673733373340.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021200120011 its reverse (1100210021202), we get a palindrome (3121410141213).

The spelling of 2021200120011 in words is "two trillion, twenty-one billion, two hundred million, one hundred twenty thousand, eleven".