21000001000110 has 64 divisors (see below), whose sum is σ = 55055821201920. Its totient is φ = 5084057444480.

The previous prime is 21000001000103. The next prime is 21000001000141. The reversal of 21000001000110 is 1100010000012.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a Curzon number.

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, 42578745 + ... + 43069124.

It is an arithmetic number, because the mean of its divisors is an integer number (860247206280).

Almost surely, 2^{21000001000110} is an apocalyptic number.

21000001000110 is an abundant number, since it is smaller than the sum of its proper divisors (34055820201810).

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

21000001000110 is a wasteful number, since it uses less digits than its factorization.

21000001000110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85648633.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 21000001000110 its reverse (1100010000012), we get a palindrome (22100011000122).

The spelling of 21000001000110 in words is "twenty-one trillion, one million, one hundred ten", and thus it is an aban number.