211701162241 has 2 divisors, whose sum is σ = 211701162242. Its totient is φ = 211701162240.

The previous prime is 211701162199. The next prime is 211701162271. The reversal of 211701162241 is 142261107112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126822166641 + 84878995600 = 356121^2 + 291340^2 .

It is a cyclic number.

It is not a de Polignac number, because 211701162241 - 2¹¹ = 211701160193 is a prime.

It is not a weakly prime, because it can be changed into another prime (211701162271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105850581120 + 105850581121.

It is an arithmetic number, because the mean of its divisors is an integer number (105850581121).

Almost surely, 2^211701162241 is an apocalyptic number.

It is an amenable number.

211701162241 is a deficient number, since it is larger than the sum of its proper divisors (1).

211701162241 is an equidigital number, since it uses as much as digits as its factorization.

211701162241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 211701162241 its reverse (142261107112), we get a palindrome (353962269353).

The spelling of 211701162241 in words is "two hundred eleven billion, seven hundred one million, one hundred sixty-two thousand, two hundred forty-one".