21120110200012 has 12 divisors (see below), whose sum is σ = 36967154686560. Its totient is φ = 10558066003856.

The previous prime is 21120110199997. The next prime is 21120110200127. The reversal of 21120110200012 is 21000201102112.

It is a junction number, because it is equal to n+sod(n) for n = 21120110199965 and 21120110200001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497250148 + ... + 497292619.

It is an arithmetic number, because the mean of its divisors is an integer number (3080596223880).

Almost surely, 2^{21120110200012} is an apocalyptic number.

It is an amenable number.

21120110200012 is a deficient number, since it is larger than the sum of its proper divisors (15847044486548).

21120110200012 is a wasteful number, since it uses less digits than its factorization.

21120110200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994548080 (or 994548078 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21120110200012 its reverse (21000201102112), we get a palindrome (42120311302124).

The spelling of 21120110200012 in words is "twenty-one trillion, one hundred twenty billion, one hundred ten million, two hundred thousand, twelve".