21200210112011 has 16 divisors (see below), whose sum is σ = 24524113388544. Its totient is φ = 17950192802304.

The previous prime is 21200210111917. The next prime is 21200210112041. The reversal of 21200210112011 is 11021101200212.

It is not a de Polignac number, because 21200210112011 - 2¹⁰ = 21200210110987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200210112041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1692971 + ... + 6728043.

It is an arithmetic number, because the mean of its divisors is an integer number (1532757086784).

Almost surely, 2^{21200210112011} is an apocalyptic number.

21200210112011 is a deficient number, since it is larger than the sum of its proper divisors (3323903276533).

21200210112011 is an equidigital number, since it uses as much as digits as its factorization.

21200210112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042410.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21200210112011 its reverse (11021101200212), we get a palindrome (32221311312223).

The spelling of 21200210112011 in words is "twenty-one trillion, two hundred billion, two hundred ten million, one hundred twelve thousand, eleven".