21110210001112 has 32 divisors (see below), whose sum is σ = 39637251763200. Its totient is φ = 10540285186464.

The previous prime is 21110210001103. The next prime is 21110210001151. The reversal of 21110210001112 is 21110001201112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21110210001092 and 21110210001101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18283153 + ... + 19403455.

It is an arithmetic number, because the mean of its divisors is an integer number (1238664117600).

Almost surely, 2^{21110210001112} is an apocalyptic number.

It is an amenable number.

21110210001112 is a deficient number, since it is larger than the sum of its proper divisors (18527041762088).

21110210001112 is a wasteful number, since it uses less digits than its factorization.

21110210001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123615 (or 1123611 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21110210001112 its reverse (21110001201112), we get a palindrome (42220211202224).

The spelling of 21110210001112 in words is "twenty-one trillion, one hundred ten billion, two hundred ten million, one thousand, one hundred twelve".