20210021200211 has 4 divisors (see below), whose sum is σ = 21398845976712. Its totient is φ = 19021196423712.

The previous prime is 20210021200153. The next prime is 20210021200297. The reversal of 20210021200211 is 11200212001202.

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

It is a cyclic number.

It is not a de Polignac number, because 20210021200211 - 2³⁸ = 19935143293267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210021208211) 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, 594412388225 + ... + 594412388258.

It is an arithmetic number, because the mean of its divisors is an integer number (5349711494178).

Almost surely, 2^{20210021200211} is an apocalyptic number.

20210021200211 is a deficient number, since it is larger than the sum of its proper divisors (1188824776501).

20210021200211 is a wasteful number, since it uses less digits than its factorization.

20210021200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188824776500.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210021200211 its reverse (11200212001202), we get a palindrome (31410233201413).

The spelling of 20210021200211 in words is "twenty trillion, two hundred ten billion, twenty-one million, two hundred thousand, two hundred eleven".