21200220000110 has 32 divisors (see below), whose sum is σ = 38355362922240. Its totient is φ = 8436821256448.

The previous prime is 21200220000109. The next prime is 21200220000131. The reversal of 21200220000110 is 1100002200212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21200220000091 and 21200220000100.

It is a congruent number.

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, 838142 + ... + 6565281.

It is an arithmetic number, because the mean of its divisors is an integer number (1198605091320).

Almost surely, 2^{21200220000110} is an apocalyptic number.

21200220000110 is a deficient number, since it is larger than the sum of its proper divisors (17155142922130).

21200220000110 is a wasteful number, since it uses less digits than its factorization.

21200220000110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7404892.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21200220000110 its reverse (1100002200212), we get a palindrome (22300222200322).

The spelling of 21200220000110 in words is "twenty-one trillion, two hundred billion, two hundred twenty million, one hundred ten", and thus it is an aban number.