2021200020011 has 8 divisors (see below), whose sum is σ = 2049947786880. Its totient is φ = 1992480904512.

The previous prime is 2021200020001. The next prime is 2021200020013. The reversal of 2021200020011 is 1100200021202.

It is a happy number.

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 2021200020011 - 2¹⁰ = 2021200018987 is a prime.

It is a super-3 number, since 3×2021200020011³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021200019974 and 2021200020001.

It is not an unprimeable number, because it can be changed into a prime (2021200020013) 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, 7020731 + ... + 7302948.

It is an arithmetic number, because the mean of its divisors is an integer number (256243473360).

Almost surely, 2^{2021200020011} is an apocalyptic number.

2021200020011 is a deficient number, since it is larger than the sum of its proper divisors (28747766869).

2021200020011 is a wasteful number, since it uses less digits than its factorization.

2021200020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14325685.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2021200020011 its reverse (1100200021202), we get a palindrome (3121400041213).

The spelling of 2021200020011 in words is "two trillion, twenty-one billion, two hundred million, twenty thousand, eleven".