21020200010211 has 8 divisors (see below), whose sum is σ = 28027005092944. Its totient is φ = 14013430800480.

The previous prime is 21020200010123. The next prime is 21020200010273. The reversal of 21020200010211 is 11201000202012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21020200010211 - 2²⁶ = 21020132901347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21020200010611) 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, 7569856 + ... + 9967101.

It is an arithmetic number, because the mean of its divisors is an integer number (3503375636618).

Almost surely, 2^{21020200010211} is an apocalyptic number.

21020200010211 is a deficient number, since it is larger than the sum of its proper divisors (7006805082733).

21020200010211 is a wasteful number, since it uses less digits than its factorization.

21020200010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17936501.

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

Adding to 21020200010211 its reverse (11201000202012), we get a palindrome (32221200212223).

The spelling of 21020200010211 in words is "twenty-one trillion, twenty billion, two hundred million, ten thousand, two hundred eleven".