21000110012199 has 12 divisors (see below), whose sum is σ = 30383465052096. Its totient is φ = 13977008966592.

The previous prime is 21000110012197. The next prime is 21000110012237. The reversal of 21000110012199 is 99121001100012.

It is not a de Polignac number, because 21000110012199 - 2¹ = 21000110012197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000110012197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1922025474 + ... + 1922036399.

It is an arithmetic number, because the mean of its divisors is an integer number (2531955421008).

Almost surely, 2^{21000110012199} is an apocalyptic number.

21000110012199 is a deficient number, since it is larger than the sum of its proper divisors (9383355039897).

21000110012199 is a wasteful number, since it uses less digits than its factorization.

21000110012199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844062486 (or 3844062483 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 21000110012199 in words is "twenty-one trillion, one hundred ten million, twelve thousand, one hundred ninety-nine".