21200110202120 has 64 divisors (see below), whose sum is σ = 47892344947200. Its totient is φ = 8445937639680.

The previous prime is 21200110202107. The next prime is 21200110202137. The reversal of 21200110202120 is 2120201100212.

21200110202120 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 21200110202095 and 21200110202104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14699441 + ... + 16077119.

It is an arithmetic number, because the mean of its divisors is an integer number (748317889800).

Almost surely, 2^{21200110202120} is an apocalyptic number.

21200110202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21200110202120 is an abundant number, since it is smaller than the sum of its proper divisors (26692234745080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21200110202120 is a wasteful number, since it uses less digits than its factorization.

21200110202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379238 (or 1379234 counting only the distinct ones).

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

Adding to 21200110202120 its reverse (2120201100212), we get a palindrome (23320311302332).

The spelling of 21200110202120 in words is "twenty-one trillion, two hundred billion, one hundred ten million, two hundred two thousand, one hundred twenty".