211112071 has 2 divisors, whose sum is σ = 211112072. Its totient is φ = 211112070.

The previous prime is 211112053. The next prime is 211112081. The reversal of 211112071 is 170211112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211112071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211112081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556035 + 105556036.

It is an arithmetic number, because the mean of its divisors is an integer number (105556036).

Almost surely, 2^211112071 is an apocalyptic number.

211112071 is a deficient number, since it is larger than the sum of its proper divisors (1).

211112071 is an equidigital number, since it uses as much as digits as its factorization.

211112071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 211112071 is about 14529.6961771401. The cubic root of 211112071 is about 595.4395650232.

Adding to 211112071 its reverse (170211112), we get a palindrome (381323183).

The spelling of 211112071 in words is "two hundred eleven million, one hundred twelve thousand, seventy-one".