21200010110 has 64 divisors (see below), whose sum is σ = 40089199104. Its totient is φ = 8056540800.

The previous prime is 21200010101. The next prime is 21200010131. The reversal of 21200010110 is 1101000212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39186440 + ... + 39186980.

It is an arithmetic number, because the mean of its divisors is an integer number (626393736).

Almost surely, 2^21200010110 is an apocalyptic number.

21200010110 is a deficient number, since it is larger than the sum of its proper divisors (18889188994).

21200010110 is a wasteful number, since it uses less digits than its factorization.

21200010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 21200010110 its reverse (1101000212), we get a palindrome (22301010322).

The spelling of 21200010110 in words is "twenty-one billion, two hundred million, ten thousand, one hundred ten".