21112242199 has 2 divisors, whose sum is σ = 21112242200. Its totient is φ = 21112242198.

The previous prime is 21112242187. The next prime is 21112242209. The reversal of 21112242199 is 99124221112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21112242199 - 2⁹ = 21112241687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112242169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556121099 + 10556121100.

It is an arithmetic number, because the mean of its divisors is an integer number (10556121100).

Almost surely, 2^21112242199 is an apocalyptic number.

21112242199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112242199 is an equidigital number, since it uses as much as digits as its factorization.

21112242199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 34.

The spelling of 21112242199 in words is "twenty-one billion, one hundred twelve million, two hundred forty-two thousand, one hundred ninety-nine".