21112110200012 has 96 divisors (see below), whose sum is σ = 40104767993472. Its totient is φ = 9666899214336.

The previous prime is 21112110199987. The next prime is 21112110200033. The reversal of 21112110200012 is 21000201121112.

It is a self number, because there is not a number n which added to its sum of digits gives 21112110200012.

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, 5507984048 + ... + 5507987880.

It is an arithmetic number, because the mean of its divisors is an integer number (417757999932).

Almost surely, 2^{21112110200012} is an apocalyptic number.

It is an amenable number.

21112110200012 is a deficient number, since it is larger than the sum of its proper divisors (18992657793460).

21112110200012 is a wasteful number, since it uses less digits than its factorization.

21112110200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667 (or 5665 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21112110200012 its reverse (21000201121112), we get a palindrome (42112311321124).

The spelling of 21112110200012 in words is "twenty-one trillion, one hundred twelve billion, one hundred ten million, two hundred thousand, twelve".