21200210020011 has 64 divisors (see below), whose sum is σ = 34323976028160. Its totient is φ = 11492401824000.

The previous prime is 21200210020007. The next prime is 21200210020027. The reversal of 21200210020011 is 11002001200212.

It is not a de Polignac number, because 21200210020011 - 2² = 21200210020007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200210020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12504475 + ... + 14098308.

It is an arithmetic number, because the mean of its divisors is an integer number (536312125440).

Almost surely, 2^{21200210020011} is an apocalyptic number.

21200210020011 is a deficient number, since it is larger than the sum of its proper divisors (13123766008149).

21200210020011 is a wasteful number, since it uses less digits than its factorization.

21200210020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26602888.

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

Adding to 21200210020011 its reverse (11002001200212), we get a palindrome (32202211220223).

The spelling of 21200210020011 in words is "twenty-one trillion, two hundred billion, two hundred ten million, twenty thousand, eleven".