21211110200210 has 32 divisors (see below), whose sum is σ = 43634775945600. Its totient is φ = 7272298622592.

The previous prime is 21211110200173. The next prime is 21211110200233. The reversal of 21211110200210 is 1200201111212.

It is a super-2 number, since 2×21211110200210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4713641 + ... + 8039939.

It is an arithmetic number, because the mean of its divisors is an integer number (1363586748300).

Almost surely, 2^{21211110200210} is an apocalyptic number.

21211110200210 is an abundant number, since it is smaller than the sum of its proper divisors (22423665745390).

21211110200210 is a wasteful number, since it uses less digits than its factorization.

21211110200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417410.

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

Adding to 21211110200210 its reverse (1200201111212), we get a palindrome (22411311311422).

The spelling of 21211110200210 in words is "twenty-one trillion, two hundred eleven billion, one hundred ten million, two hundred thousand, two hundred ten".