21210220200110 has 16 divisors (see below), whose sum is σ = 38182304653200. Its totient is φ = 8483219570496.

The previous prime is 21210220200097. The next prime is 21210220200119. The reversal of 21210220200110 is 1100202201212.

It is a super-3 number, since 3×21210220200110³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210220200119) 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, 108461120 + ... + 108656499.

It is an arithmetic number, because the mean of its divisors is an integer number (2386394040825).

Almost surely, 2^{21210220200110} is an apocalyptic number.

21210220200110 is a deficient number, since it is larger than the sum of its proper divisors (16972084453090).

21210220200110 is a wasteful number, since it uses less digits than its factorization.

21210220200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217127395.

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

Adding to 21210220200110 its reverse (1100202201212), we get a palindrome (22310422401322).

The spelling of 21210220200110 in words is "twenty-one trillion, two hundred ten billion, two hundred twenty million, two hundred thousand, one hundred ten".