211199475249179 has 2 divisors, whose sum is σ = 211199475249180. Its totient is φ = 211199475249178.

The previous prime is 211199475249121. The next prime is 211199475249211. The reversal of 211199475249179 is 971942574991112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211199475249179 is a prime.

It is not a weakly prime, because it can be changed into another prime (211199475249379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105599737624589 + 105599737624590.

It is an arithmetic number, because the mean of its divisors is an integer number (105599737624590).

Almost surely, 2^{211199475249179} is an apocalyptic number.

211199475249179 is a deficient number, since it is larger than the sum of its proper divisors (1).

211199475249179 is an equidigital number, since it uses as much as digits as its factorization.

211199475249179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102876480, while the sum is 71.

The spelling of 211199475249179 in words is "two hundred eleven trillion, one hundred ninety-nine billion, four hundred seventy-five million, two hundred forty-nine thousand, one hundred seventy-nine".