211420199 has 2 divisors, whose sum is σ = 211420200. Its totient is φ = 211420198.

The previous prime is 211420171. The next prime is 211420219. The reversal of 211420199 is 991024112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211420199 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211420399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710099 + 105710100.

It is an arithmetic number, because the mean of its divisors is an integer number (105710100).

Almost surely, 2^211420199 is an apocalyptic number.

211420199 is a deficient number, since it is larger than the sum of its proper divisors (1).

211420199 is an equidigital number, since it uses as much as digits as its factorization.

211420199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 211420199 is about 14540.2956985063. The cubic root of 211420199 is about 595.7291148847.

The spelling of 211420199 in words is "two hundred eleven million, four hundred twenty thousand, one hundred ninety-nine".