21011110000110 has 48 divisors (see below), whose sum is σ = 54629336885760. Its totient is φ = 5602916422080.

The previous prime is 21011110000103. The next prime is 21011110000159. The reversal of 21011110000110 is 1100001111012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21011110000092 and 21011110000101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10794240 + ... + 12591180.

It is an arithmetic number, because the mean of its divisors is an integer number (1138111185120).

Almost surely, 2^{21011110000110} is an apocalyptic number.

21011110000110 is an abundant number, since it is smaller than the sum of its proper divisors (33618226885650).

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

21011110000110 is a wasteful number, since it uses less digits than its factorization.

21011110000110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926873 (or 1926870 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 21011110000110 its reverse (1100001111012), we get a palindrome (22111111111122).

The spelling of 21011110000110 in words is "twenty-one trillion, eleven billion, one hundred ten million, one hundred ten", and thus it is an aban number.