211101199979 has 2 divisors, whose sum is σ = 211101199980. Its totient is φ = 211101199978.

The previous prime is 211101199963. The next prime is 211101200021. The reversal of 211101199979 is 979991101112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211101199979 - 2⁴ = 211101199963 is a prime.

It is not a weakly prime, because it can be changed into another prime (211101139979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550599989 + 105550599990.

It is an arithmetic number, because the mean of its divisors is an integer number (105550599990).

Almost surely, 2^211101199979 is an apocalyptic number.

211101199979 is a deficient number, since it is larger than the sum of its proper divisors (1).

211101199979 is an equidigital number, since it uses as much as digits as its factorization.

211101199979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 50.

The spelling of 211101199979 in words is "two hundred eleven billion, one hundred one million, one hundred ninety-nine thousand, nine hundred seventy-nine".