21112000199 has 2 divisors, whose sum is σ = 21112000200. Its totient is φ = 21112000198.

The previous prime is 21112000123. The next prime is 21112000229. The reversal of 21112000199 is 99100021112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21112000199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112000109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556000099 + 10556000100.

It is an arithmetic number, because the mean of its divisors is an integer number (10556000100).

Almost surely, 2^21112000199 is an apocalyptic number.

21112000199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112000199 is an equidigital number, since it uses as much as digits as its factorization.

21112000199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 21112000199 in words is "twenty-one billion, one hundred twelve million, one hundred ninety-nine", and thus it is an aban number.