21000210000110 has 16 divisors (see below), whose sum is σ = 41236776000432. Its totient is φ = 7636440000000.

The previous prime is 21000210000101. The next prime is 21000210000113. The reversal of 21000210000110 is 1100001200012.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000210000113) 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, 95455499891 + ... + 95455500110.

It is an arithmetic number, because the mean of its divisors is an integer number (2577298500027).

Almost surely, 2^{21000210000110} is an apocalyptic number.

21000210000110 is a deficient number, since it is larger than the sum of its proper divisors (20236566000322).

21000210000110 is a wasteful number, since it uses less digits than its factorization.

21000210000110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190911000019.

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

Adding to 21000210000110 its reverse (1100001200012), we get a palindrome (22100211200122).

The spelling of 21000210000110 in words is "twenty-one trillion, two hundred ten million, one hundred ten", and thus it is an aban number.